American Public Health Association for contributions to health statistics. His committee service includes the Committee on National Statistics and a committee on statistical issues in AIDS research of the National Research Council, as well as the clinical research subcommittee of the AIDS Research Advisory Committee of the National Institute of Allergy and Infectious Diseases. He was on the editorial board of Statistics in Medicine from 1985 to 1994 and has served on the regional advisory board of the Biometrics Society and is currently chair of the biometrics section of the American Statistical Association.
LAWRENCE S. BROWN, JR., is an attending physician in the Division of Endocrinology of the Department of Medicine at Harlem Hospital and assistant clinical professor of medicine in the College of Physicians and Surgeons at Columbia University. He is also senior vice president for medical services, evaluation, and research of the Addiction Research and Treatment Corporation in Brooklyn, New York. He has an M.D. from New York University and an M.P.H. from Columbia University. He serves as a consultant to many federal, state, and city agencies, as well as private foundations and organizations, including the National Football League. He has participated in public policy development in health manpower and drug-abuse-related transmission of AIDS through projects, media presentations, and involvement in varied public and private task forces and fora. He is the author of several publications and is a member of the National Medical Association, the American Public Health Association, the New York Academy of Sciences, the Association for the Advancement of the Sciences, the professional section of the American Diabetes Association, the American Society for Internal Medicine, the American College of Physicians, and the Black Leadership Commission on AIDS.
RICHARD F. CATALANO, JR., is professor and associate director of the Social Development Research Group at the University of Washington's School of Social Work in Seattle. He has a B.S. from the University of Wisconsin and a Ph.D. in sociology from the University of Washington. He has been involved in research and program development in the areas of drug abuse and delinquency for over 17 years. His work has focused on discovering risk and protective factors for adolescent problem behavior and designing and evaluating programs to address these factors. He is the principal investigator and coinvestigator on a number of federal grants, which involve family, school, and community-based prevention approaches to reduce risk while enhancing the protective factors of bonding and the promotion of healthy beliefs and clear standards. He has published over 50 articles and book chapters and has served on the Epidemiology and Prevention Review Committee of the National Institute on Drug Abuse and on the Washington