1. Division of Child and Adolescent Psychiatry, Vagelos College of Physicians & Surgeons, Columbia University, New York City (Mroczkowski, Gould); Division of Child and Adolescent Psychiatry, New York State Psychiatric Institute, New York City (Lake, Kleinman, Chowdhury); Department of Emergency Medicine, Vagelos College of Physicians and Surgeons, Columbia University, New York City (Sonnett); New York State Psychiatric Institute, New York City (Gould).