sor Tetrick received her doctorate in industrial/organizational psychology from the Georgia Institute of Technology in 1983.

NEAL A. VANSELOW, M.D., is Chancellor-emeritus and Professor-emeritus of Medicine at Tulane University Medical Center. He also holds an appointment as Adjunct Professor of Health Systems Management in the Tulane School of Public Health and Tropical Medicine. He served as Chancellor of Tulane University Medical Center from 1989 to 1994 and as a Scholar-in-Residence at the Institute of Medicine during the 1994 to 1995 academic year. He has served as Chairman of the Department of Post-graduate Medicine and Health Professions Education at the University of Michigan, Dean of the University of Arizona College of Medicine, Chancellor of the University of Nebraska Medical Center, and Vice President for Health Sciences at the University of Minnesota. He is an allergist who received his training in internal medicine and allergy/immunology at the University of Michigan. Dr. Vanselow has served as chairperson of the Council on Graduate Medical Education (U.S. Department of Health and Human Services) and chairperson of the Board of Directors, Association of Academic Health Centers. He has been a member of the Institute of Medicine since 1989 and chaired the Institute of Medicine Committee on the Future of Primary Care. He also served as cochair of the Institute of Medicine Committee on the U.S. Physician Supply. He currently serves as a member of the Pew Health Professions Commission and is on the Board of Trustees of Meharry Medical College. His areas of particular interest include the health care workforce and graduate medical education.

M. DONALD WHORTON, M.D., M.P.H., is an occupational medicine physician certified by the American Board of Internal Medicine, the American Board of Preventive Medicine, and the American College of Epidemiology. Dr. Whorton started his own medical consulting firm, Whorton and Associates, in July 1994. He began his consulting career in 1978 as a Principal and Senior Occupational Physician and Epidemiologist at Environmental Health Associates and remained as the Chief Medical Scientist and a Vice President of ENSR Consulting and Engineering after its purchase in 1988. Dr. Whorton is internationally known for his work on the effects of the nematocide DBCP on the testes of exposed workers and other studies on reproductive effects from workplace exposures. He has authored or co-authored numerous scientific and policy-related articles in professional journals. Dr. Whorton was formerly on the staff of the University of California in Berkeley. A member of many professional organizations, he is a past officer of the American Public Health Association and member of the editorial board of the American Journal of Public Health and a past member of the National Institute for Occupa-