1. New York State Psychiatric Institute, Columbia University Medical Center, New York (Dakwar, Nunes, Hart, Foltin, Carpenter, Levin); the Department of Psychology, Columbia University, New York (Hart); the Department of Psychiatry, Baylor College of Medicine, Houston (Mathew); New York State Psychiatric Institute, Division of Biostatistics, New York (Choi, Basaraba); and the Department of Biostatistics, Columbia University Medical Center, New York (Pavlicova).