1. Mark Olfson and Melanie M. Wall are with the Vagelos College of Physicians and Surgeons and Mailman School of Public Health, Columbia University, and with the New York State Psychiatric Institute, New York, NY. Candace M. Cosgrove is with the US Census Bureau, Suitland, MD. Sean F. Altekruse is with National Heart, Lung, and Blood Institute, Division of Cardiovascular Sciences, Bethesda, MD. Carlos Blanco is with the National Institute on Drug Abuse, Division of Epidemiology, Services, and Prevention...