Myrna M. Weissman, Ph.D. is Professor of Epidemiology and Psychiatry and Chief of the Division of Clinical and Genetic Epidemiology at New York State Psychiatric Institute. She is a faculty member in Epidemiology at the School of Public Health as well as in the Department of Psychiatry at the College of Physicians and Surgeons at Columbia University. John C. Markowitz, M.D. is a Clinical Professor of Psychiatry at Weill Medical College of Cornell University, Adjunct Professor at the College of Physicians and Surgeons at Columbia University, and a Research Psychiatrist at New York State