Full Text HL-93-04-H PEDIATRIC CARDIOVASCULAR DISEASE CENTERS NIH GUIDE, Volume 21, Number 38, October 23, 1992 RFA: HL-93-04-H P.T. 04, AA Keywords: Cardiovascular Diseases Etiology Pathophysiology Diagnosis, Medical Disease Prevention+ 0745070 National Heart, Lung, and Blood Institute Letter of Intent Receipt Date: January 4, 1993 Application Receipt Date: March 15, 1993 PURPOSE The Division of Heart and Vascular Diseases of the National Heart, Lung, and Blood Institute (NHLBI) invites applications for a single competition to establish Specialized Centers of Research (SCOR) in pediatric cardiovascular diseases. In keeping with the criteria for SCORs, the solicitation requires all applicants to propose both basic and clinical research. The emphasis of this solicitation is on innovative approaches to elucidation of the etiology and pathophysiology of clinical phenomena and the translation of research findings into improved diagnosis, treatment and prevention of cardiovascular diseases in children. Applicants are required to select a single theme and to develop interrelated research projects clearly focussed on that theme. The goal is to foster a synergistic environment for basic and clinical investigations. All projects must have clearly stated hypotheses and include original and innovative ideas with respect to the problem to be studied. An additional SCOR initiative is available in heart failure, ischemic heart disease, and sudden cardiac death. A given institution may respond to more than one of the current solicitations, but may not submit more than one application for a given topic. Additionally, because a SCOR is a major research commitment, each application must have a different principal investigator and preferably no overlap in professional personnel between the SCOR applications. Applications must relate clearly to the theme of a specific solicitation. Potential applicants are therefore urged to consult with staff to determine which solicitation offers the best fit for their research ideas. HEALTHY PEOPLE 2000 The Public Health Service (PHS) is committed to achieving the health promotion and disease prevention objectives of "Healthy People 2000," a PHS-led national activity for setting priority areas. This RFA, Pediatric Cardiovascular Disease Centers, is related to the priority area of maternal and infant health. Potential applicants may obtain a copy of "Healthy People 2000" (Full Report: Stock No. 017-001-00474-0 or Summary Report: Stock No. 017-001-00473-1) through the Superintendent of Documents, Government Printing Office, Washington DC 20402-9325 (telephone 202-783-3238). ELIGIBILITY REQUIREMENTS Applications may be submitted by domestic, for-profit and non-profit organizations, public and private, such as universities, colleges, hospitals, laboratories, units of State and local governments, and eligible agencies of the Federal government that have established clinical programs in pediatric cardiology and the capability to conduct relevant basic research. Foreign organizations are ineligible. International collaborations in domestic applications will only be accepted if the resources are clearly shown to be unavailable in the United States. Applications from minority individuals and women are encouraged. The program director must devote at least twenty-five percent effort to the SCOR and be the project leader of at least one project or core. All other project leaders must commit twenty percent effort to their respective projects. Applications not fulfilling these requirements will be ineligible for participation in the competition. MECHANISM OF SUPPORT This RFA will use the National Institutes of Health (NIH) specialized center grant mechanism (P50). Responsibility for planning the proposed project will be solely that of the applicant. The total project period for applications submitted in response to the present RFA may not exceed five years. The anticipated date of award is September 30, 1993. Although multidisciplinary approaches are required, it is not the intent of this announcement to solicit applications for large clinical trials or large epidemiological studies. In general, funds will not be provided for the purchase and installation of expensive, new equipment. No awards under this announcement will be made to foreign institutions. Upon initiation of the program, the Division of Heart and Vascular Diseases will sponsor periodic meetings to encourage exchange of information among investigators who participate in this program, and to stimulate collaboration. Applicants must request additional travel funds for a one-day meeting each year, most likely to be held in Bethesda, Maryland. Applicants should also include a statement in their applications indicating their willingness to participate in these meetings. All successful applicants will be eligible for one competing renewal. Subsequent renewals will depend on progress and needs in the field. FUNDS AVAILABLE Approximately $3.0 million in total cost will be provided for the first year of support for the entire program. No applicant may request more than $750,000 in direct costs in the first year. Indirect costs incurred for subcontracts are not included in direct cost calculations of the upper limit. Future years may be escalated at no more than four percent. It is anticipated that three grants will be awarded under this program. This level of support is dependent on the receipt of a sufficient number of applications of high scientific merit. Although this program is provided for in the financial plan of the NHLBI, awards pursuant to this RFA are contingent upon the availability of funds for this purpose. Administrative adjustments in project period and/or amount may be necessary at the time of the award. RESEARCH OBJECTIVES Background (NHLBI Specialized Centers of Research) A SCOR consists of three or more closely related projects and one or more core units which provide specialized services to several of the projects. At least one of the projects must be clinical and involve human subjects or human materials or both. All SCOR applications must include an administrative core which serves as a focal point for the SCOR program. The purpose of the NHLBI SCOR program is the translation of new scientific information into improved care of patients. Its structure is designed to create an environment in which basic and clinical investigators collaborate closely on projects related to a specifically defined theme. It is vital that the clinical and basic science projects be well integrated and have the potential for contributing to the resolution of clinical issues related to the theme chosen by the applicant within the general category of pediatric cardiovascular diseases. An essential feature of a SCOR is a Director capable of providing effective scientific and administrative leadership to a cluster of related individual research projects involving basic, applied and clinical investigations. In addition, the Director must devote twenty-five percent effort to the SCOR and be the project leader of at least one project or core. The Director is responsible for the organization and operation of the Center and for all communications with the NHLBI on scientific and operational matters. Each SCOR Director should encourage and support close collaboration between individual SCOR investigators by means of frequent meetings and seminars. There are two recent NHLBI policies of which potential applicants to this RFA should take note. The first is that it is anticipated that SCOR programs will receive a maximum of ten years support. To implement this policy, applicants with already established SCOR programs are allowed to apply for one final renewal in the topic for which they are currently funded. New SCOR programs established as a result of the current competition will have the opportunity to compete for one five year renewal. This policy will be waived only if deemed advisable after thorough programmatic review. The second policy relates to a limitation of $750,000 in the amount of direct costs that may be requested in response to the solicitation in either new or renewal applications. Applications requesting larger amounts will be returned to the applicant. Applicants from institutions that have a General Clinical Research Center (GCRC) funded by the NIH National Center for Research Resources may wish to identify the GCRC as a resource for conducting the proposed research. In such a case, a letter of agreement from either the GCRC program director or principal investigator could be included with the application. Background (Scientific) The goal of this program is reduction of death and disability from congenital and acquired cardiovascular diseases in children through the development of new prevention and treatment strategies. It is intended to encourage investigators with a vision of how modern technologies can be applied to the problem to propose projects that will provide insight into the etiology and pathophysiology of these diseases. For congenital heart disease, this involves new approaches to postnatal treatment and the development of methods for modifying the course of evolving cardiac malformations in the fetus. It also involves accumulating genetic information that may ultimately lead to techniques for gene therapy, although at the present time such an approach appears fraught with complexities. For acquired heart disease, this program provides the opportunity to develop knowledge regarding host factors and pathogenic mechanisms and to utilize that knowledge in prevention and treatment. The following discussion illustrates several ways in which clinical investigations might be integrated with fundamental studies in physiology, cell biology, genetics, molecular biology and computer technology. These examples do not imply Institute priorities. Applicants should select projects for their research programs based on their own knowledge of the field and the available resources at their own institutions. At present, expansion of therapeutic options for post-natal care will provide the most immediate opportunities for reduction of mortality and morbidity. For example, in complex cardiac malformations choice of surgical approach is often difficult. The uncertainties could be, in part, resolved by systematic evaluation of outcomes, and in part by the development of sophisticated computer programs for modeling outcomes of potential reparative approaches. Pharmacologic intervention is often required both before and after surgery. Study is needed of the effects of cardiovascular drugs used to treat infants and children since they differ from adults not only in size but also in fluid volume, body fat, maturation and drug metabolism. Another important area involves the adverse effects of cardiopulmonary bypass on outcome of surgery as well as the developing nervous system of the infant and young child. Their immature or dysfunctional immune and coagulation systems may contribute to poor outcomes in surgical interventions requiring cardiopulmonary bypass and studies are needed to define immune and hemostatic factors which influence outcome. Currently, children who require valve replacement with mechanical, homograft or xenograft valves face a shortened life expectancy and increased morbidity due to mechanical failure, calcification, thromboembolic phenomena, infection and anticoagulant-induced hemorrhage. The possibility that valve leaflets could be generated from a patient's own tissue has not been explored. A longterm possibility for overcoming the problems of valve replacement is to develop a technique to generate the semilunar and atrioventricular valves from homologous cells. Clearly, much basic research is required to lay the foundation for such an enterprise. Intensified research on therapeutic fetal intervention could result in clinical application in the near future. If this goal of early intervention is to be achieved, considerable effort must be placed on the detection of malformations earlier in fetal development than the current limit of approximately four and one half months' gestation. Early and accurate visualization of cardiac defects would allow the option of in utero intervention, either by surgery or by percutaneously delivered catheters, or perhaps ultimately by local delivery of DNA constructs or genetically altered cells. Refinement of current imaging techniques and miniaturization of interventional catheters for use in fetal therapy would be valuable. Second trimester repair of congenital diaphragmatic hernia has shown that tissue hypoplasia can be reversed if correction is made early in gestation. The possibility that stenotic atrioventricular heart valves cause hypoplasia of structures downstream from the stenosis is an issue central to our understanding of CCVM fetal pathophysiology. Hence, second trimester catheter dilation of the stenotic or atretic pulmonary valve and outflow tract of Tetralogy of Fallot could increase pulmonary blood flow sufficiently to allow adequate growth in cases otherwise destined to develop hypoplasia of the pulmonary vasculature. Large animal models exist for some CCVM (Tetralogy of Fallot, VSD) which will permit experimentalists to begin work immediately on at least some of these lesions. Another approach to treatment of the fetus is the development of techniques for the delivery of genetically altered cells or DNA constructs to modify malformed structures. It is possible that stenoses of the aorta and pulmonary arteries could be prevented by therapy designed to modify the proliferation of vascular smooth muscle cells. Study of the cells of the developing vasculature could define the mechanisms of altered growth and lead to techniques for the generation of larger vessels and vascular remodelling. Another long-term prospect of cellular manipulation involves the ventricular septum. In hypertrophic cardiomyopathy, which in some cases leads to sudden death and in other cases to symptomatic limitation due to fatigue, dyspnea and chest pain, obstruction of the left ventricular outflow tract is caused by abnormal growth or proliferation of myocytes. On the other hand, in ventricular septal defects, which often require surgical closure and incur the sequelae of complications from scars in the myocardium, there is inadequate growth and/or failure of cell migration. Fundamental studies of the defects of the cells in this region and of the factors that promote and retard myocyte growth could lead to cellular manipulation in vivo. At the present time there is a relative paucity of knowledge about the molecular genetics of congenital heart disease. The feasibility of rapid progress in the study of human cardiac malformations is demonstrated by recent advances. The epidemiologic Baltimore-Washington Infant Study has shown that at least one complex CCVM appears to be a single-gene defect. Researchers have found that the risk of Hypoplastic Left Heart Syndrome (HLHS) may be controlled by a single major gene. Other left-sided obstructive lesions such as bicuspid aortic valve and aortic coarctation are strongly associated with the HLHS lesion. Pedigree and chromosome fingerprinting of these families could very likely lead to rapid progress in identifying a candidate gene. Chromosome fingerprinting refers to the unique hybridization pattern (i.e., 'fingerprint') seen when an individual's Southern Blot DNA is probed with a sequence known to be associated with a mutational 'hot spot.' The pattern for each sample probed is unique to that individual and is a sensitive means of identifying regions of DNA mutation. These data combined with echocardiograms of affected family members in a pedigree could provide much needed information about the gene implicated in a specific malformation. At least eight other forms of congenital heart disease are now recognized as being caused by single gene defects and in all but two of them the responsible genes cause multisystem syndromes. In Noonan syndrome the most common cardiac defect is valvular pulmonary stenosis, although about twenty percent may have atrial septal defect or hypertrophic cardiomyopathy. Electrocardiographic abnormalities are also seen. In the Leopard syndrome pulmonic valve stenosis and conduction defects are observed. The Holt-Oram syndrome also includes congenital heart defects, most often atrial septal defect of the secundum type accompanied by electrophysiological abnormalities. Molecular studies of these and other inherited defects such as the Jervell and Lange-Nielsen and Romano-Ward long QT syndromes, and the familial form of Wolff-Parkinson-White syndrome, could lead to elucidation of the fundamental mechanisms which are perturbed in patients with CCVM and congenital arrhythmias. Although single gene defects and chromosomal abnormalities account for a large proportion of congenital heart disease, it is also becoming clear that the gene defect is not necessarily the same in all affected individuals. Further, many others may be oligogenic and a few may be polygenic. Teratogenicity and familial susceptibility to environmental toxins could account for still other lesions. Dissecting the origins of genetic diseases could be accomplished using animal models, genetic linkage mapping and quantitative trait locus determination. Study of the molecular mechanism(s) by which teratogens produce structural or functional abnormalities is another area where research would be very informative. Although it is clear that aberrations in embryonic and fetal development have their origins in factors that control gene expression, only a few of the genes involved have been described. Of particular interest are those involved in pattern formation. The role of pattern formation genes in mammalian heart development was apparent when the murine hox-7 gene was found to be expressed in the endocardial cushions of fetal mice. Homologous recombination of another mouse homeobox gene, hox-1.5, has produced cardiovascular abnormalities in homozygous mouse pups. Homeobox, other pattern formation genes as well as cell proliferation and differentiation genes are a rich field for collaboration among molecular biologists and cardiac embryologists. An alternative technique by which developmental cardiac genes could be identified is that of Gene Trapping. This technique incorporates a non-lethal reporter gene into embryonic stem cells used to make transgenic mice. Occasionally this integration will occur in the regulatory region of a developmental cardiac gene. That gene can be located and has already proven capable of identifying genes expressed in cardiac morphogenesis. An approach that has proven successful in isolating thousands of new brain genes is the sequencing of cDNA libraries of human fetal and child brain. Scientists have identified portions or Expressed Sequence Tags (ESTs) of more than 2500 new genes expressed only in the brain. Although such a technique would be more complex in studies of the heart, it is possible that similar libraries could be constructed from embryonic mouse or chick heart leading to a rapid selection of genes important in cardiac development. Some genetically determined forms of pediatric cardiovascular disease are not expressed at birth but develop during childhood. At least ten single-gene-determined forms of cardiomyopathy are currently recognized. Studies of these together with the cardiac abnormalities seen in Duchenne's and myotonic dystrophies could lead to understanding of the genetic factors which are associated with formation and maintenance of normal heart structure and function. Identification of the myotonic dystrophy gene product could yield information about a molecular mechanism of defective cardiac conduction and abnormal muscle relaxation. Studies of heritable connective tissue disorders such as Marfan Syndrome could throw light on aspects of the remodelling process which occurs in aortic aneurysms, hypertrophy, and cardiomyopathy. Although structural defects of the cardiovascular system are the most dramatic in terms of infant mortality, there are functional defects that lead to morbidity and mortality, often not manifest until childhood or adolescence. These include heritable, chemotherapy-related, and idiopathic cardiomyopathies and arrhyth- mias. These represent areas of investigation that could lead to improved health for affected individuals, once fundamental mechanisms underlying the expression of these diseases have been elucidated. Aberrations in mitochondrial DNA are thought to be at fault in at least a few cardiomyopathies and that is consistent with recent findings of heritability. Another emerging problem is the occurrence of cardiomyopathies in children successfully treated for cancer with anthracyclines. Much needs to be known before effective treatment and prevention can be developed. Acquired heart diseases such as Rheumatic Fever (RF), Kawasaki Disease (KD), HIV-related heart disease (HIVHD), and other cardiomyopathies represent another area of research. Prevention of RF or treatment of the acute sequelae of KD are quite effective though little is understood of the host factors which render some individuals susceptible to these diseases. A role for bacterial or viral "Super Antigens," particularly in RF, has been postulated, but little is known other than the majority of patients with RF have the major histocompatibility genotype of DR2 or DR4. Whether the heart disorders of vertically transmitted HIV are due to HIV itself, the immune environment in utero, concurrent infections in the mother, or high risk behavior is unknown. Research in this field could lead to much important knowledge on how infections or other environmental factors affect the developing fetus. Objectives and Scope All applications must include basic and clinical research projects that are interrelated. Research focussed mainly on areas which are traditionally under the purview of the atherosclerosis and hypertension programs will be considered unresponsive to this solicitation. Proposed Research The suggestions provided below are for illustrative purposes only. They do not represent the full range of possible research projects that would be responsive to this solicitation nor do they indicate Institute priorities. Applicants are urged to develop their own programs of research that would advance knowledge, treatment and prevention of cardiovascular disease in children. o Identification of new cardiac genes expressed in normal development o Detailed studies of the timing of gene expression in developing heart and correlation with developmental events in the embryo o Investigations of the contributions of genetic information in the sperm and oocyte to congenital heart defects coupled with further knowledge of the patterns of inheritance of congenital heart defects from male and female progenitors o Studies designed to identify defective genes in CCVM and to elucidate their roles o Investigations of the possibilities of gene therapy or the insertion of DNA constructs to modify cardiac malformations o Elucidation of factors controlling vascular growth in the embryo and fetus, particularly with reference to pulmonary hypoplasia and pulmonary vascular obstructive disease o Development of imaging techniques applicable to human embryonic hearts for early detection of structural defects o Study of corrective cardiac surgery in the fetus o Adaptation of interventional catheterization procedures and bypass technology to fetuses and studies of outcome o Fundamental studies designed to elucidate the role of immature or dysfunctional immune and coagulation systems in poor outcome of infant heart surgery o Evaluation of outcomes of interventional, device implantation, pharmacologic and surgical therapies, including cardiac transplantation o Studies designed to elucidate the etiology of childhood cardiomyopathies o Exploration of new therapeutic modalities to prevent the deleterious effects of anthracyclines on the heart o Elucidation of the factors predisposing patients to cardiovascular sequelae of infections o Exploration of techniques to develop valve leaflets from a patient's own tissue o Experiments focussed on the defects of mitochondrial DNA which lead to idiopathic cardiomyopathy and the possibilities of gene therapy SPECIAL INSTRUCTIONS FOR INCLUSION OF WOMEN AND MINORITIES IN CLINICAL RESEARCH STUDIES The following statement is required for all RFAs. In this case "women" applies to female children. NIH policy is that applicants for NIH clinical research grants and cooperative agreements will be required to include minorities and women on study populations so that research findings can be of benefit to all persons at risk of the disease, disorder or condition under study; special emphasis should be placed on the need for inclusion of minorities and women in studies of diseases, disorders and conditions which disproportionately affect them. This policy is intended to apply to males and females of all ages. If women or minorities are excluded or inadequately represented in clinical research, particularly in proposed-population based studies, a clear compelling rationale must be provided. The composition of the proposed study population must be described in terms of gender. In addition issues of gender should be addressed in developing a research design and sample size appropriate for the scientific objectives of the study. This information should be included in the form PHS 398 in Sections 1-4 of the research plan AND summarized in Section 5, Human Subjects. Applicants are urged to assess carefully the feasibility of including adequate numbers of women. For the purpose of this policy, clinical research includes human biomedical and behavioral studies of etiology, epidemiology, prevention (and prevention strategies), diagnosis, or treatment of diseases, disorders or conditions, including but not limited to clinical trails. The usual NIH policies concerning research on human subjects also apply. Basic research or clinical studies in which human tissues cannot be identified or linked to individuals are excluded. However, every effort should be made to include human tissues from women when it is important to apply the results of the study broadly, and this should be addressed by applicants. For foreign awards, the policy on inclusion of women applies fully; since the definition of minority differs in other countries, the applicant must discuss the relevance of research involving foreign population groups to the United States' populations, including minorities. If the required information is not contained within the application, the application will not be accepted for review. Peer reviewers will address specifically whether the research plan in the application conforms to these policies. If the representation of women is inadequate to answer the scientific question(s) addressed AND the justification for the selected study population is inadequate, it will be considered a scientific weakness or deficiency in the study design and will be reflected in assigning the priority score to the application. All applications for clinical research submitted to NIH are required to address these policies. NIH funding components will not award grants or cooperative agreements that do not comply with these policies. LETTER OF INTENT Prospective applicants are asked to submit, by January 4, 1993 a letter of intent that includes a descriptive title of the proposed research, the name, address, and telephone number of the Principal Investigator, the identities of other key personnel and participating institutions, and the number and title of the RFA in response to which the application may be submitted. Although a letter of intent is not required, is not binding, and does not enter into the review of subsequent applications, the information that it contains is helpful in planning for the review of applications. The letter of intent is to be sent to: Chief, Centers and Special Projects Section Review Branch/Division of Extramural Affairs National Heart, Lung, and Blood Institute Westwood Building, Room 553A Bethesda, MD 20892 APPLICATION PROCEDURES The research grant application form PHS 398 (rev. 9/91) is to be used in applying for these grants. These forms are available at most institutional business offices and may be obtained from the Office of Grants Inquiries, Division of Research Grants, National Institutes of Health, Westwood Building, Room 449 Bethesda, MD 20892, telephone 301-496-7441. Applicants must follow the instructions provided in the supplement to the RFA. The RFA label available in the PHS 398 application form must be affixed to the bottom of the fact page of the application. Failure to use this label could result in delayed processing of the application such that it may not reach the review committee in time for review. In addition, to identify the application as a response to this RFA, Check "YES", enter the title "Pediatric Cardiovascular Disease Centers," HL-93-04-H on line 2a of the face page of the application. Send or deliver a signed, typewritten original of the application, including the checklist, and three signed photocopies, in one package to: Division of Research Grants National Institutes of Health Westwood Building, Room 240 Bethesda, MD 20892** Send two additional copies of the application to Chief, Centers and Special Projects Section at the address listed under LETTER OF INTENT. It is important to send these two copies at the same time as the original and three copies are sent to the Division of Research Grants, or the NHLBI cannot guarantee that the application will be reviewed in competition for this RFA. Applications must be received by March 15, 1993. If an application is received after that date, it will be returned to the applicant. The Division of Research Grants (DRG) will not accept any application in response to this announcement that is essentially the same as one currently pending initial review or is essentially the same as one already reviewed. This does not preclude the submission of substantial revisions of applications already reviewed, but such applications must include an introduction addressing the previous critique. REVIEW CONSIDERATIONS Upon receipt, applications will be reviewed by NIH staff for completeness and responsiveness. Incomplete applications will be returned to the applicant without further consideration. If the application is not responsive to the RFA, it will be returned. Applications will be triaged by a peer review group convened by the NHLBI on the basis of relative competitiveness. The NHLBI will withdraw from further competition those applications judged to be non-competitive for award and notify the applicant Principal Investigator and institutional official. Those applications judged to be competitive will undergo further scientific merit review. They will be evaluated in accordance with the criteria stated below for scientific/technical merit by an appropriate peer review group convened by the NHLBI. The initial review may include a site visit or applicant interview. The second level of review will be provided by the National Heart, Lung, and Blood Advisory Council in September 1993. Review criteria for RFAs are generally the same as those for unsolicited interdisciplinary research grant applications. o the scientific merit of each proposed project in the application, including originality, feasibility of the approach, and adequacy of the experimental design; o the integration of the clinical and fundamental research into a coherent enterprise with adequate plans for interaction and communication of information and concepts among the collaborating investigators; o the technical merit and justification of each core unit; o the qualifications, experience, and commitment of the SCOR Director and his/her ability to devote adequate time and effort to provide effective leadership; o the competence of the project investigators to accomplish the proposed research goals, their commitment, and the time they will devote to the program; o the adequacy of facilities to perform the proposed research including the laboratory and clinical facilities, access to subjects, instrumentation, and data management systems when needed; o the scientific and administrative structure of the program, including adequate internal and external arrangements and procedures for monitoring and evaluating the proposed research and for providing ongoing quality control and scientific review; o the institutional commitment to the program and the appropriateness of the institutional resources and policies for the administration of a research program of the type proposed; and o the appropriateness of the budget for the proposed program. AWARD CRITERIA Applications must fulfill all the eligibility criteria to be considered for funding. The most important criterion in selecting awardees will be the scientific merit as reflected in the priority score. However, factors such as program balance and available funds may enter into selection from among meritorious applications. Since a variety of approaches would represent valid responses to this announcement, it is anticipated that there will be a range of costs among individual grants awarded. The anticipated date of award is September 30, 1993. INQUIRIES Inquiries regarding this announcement may be directed to the program administrator: Dr. Constance Weinstein Chief, Cardiac Diseases Branch Division of Heart and Vascular Diseases National Heart, Lung, and Blood Institute Federal Building, Room 3C06 Bethesda, MD 20892 Telephone: (301) 496-1081 FAX: (301) 480-6282 Inquiries regarding fiscal and administrative matters may be directed to: Mr. William Darby Grants Operations Branch Division of Extramural Affairs National Heart, Lung, and Blood Institute Westwood Building, Room 4A11 Bethesda, MD 20892 Telephone: (301) 496-7536 FAX: (301) 402-1200 AUTHORITY AND REGULATIONS This program is described in the Catalog of Federal Domestic Assistance No. 93.837, Heart and Vascular Diseases. Awards are made under the authority of the Public Health Service Act, Section 301 (42 USC 241) and administered under PHS grants policies and Federal regulations, most specifically 42 CFR Part 52 and 45 CFR Part 74. This program is not subject to the intergovernmental review requirements of Executive Order 12372, or to Health Systems Agency Review. .
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