From the Department of Psychiatry and the Division of Child and Adolescent Psychiatry, Columbia University, College of Physicians and Surgeons, and New York State Psychiatric Institute, New York; Department of Psychiatry, University of Pennsylvania, Philadelphia; University of Pittsburgh School of Medicine and Western Psychiatric Institute and Clinic, Pittsburgh; Department of Psychiatry, University of Rochester Medical Center, Rochester, N.Y.; and the Monash University Centre for Developmental Psychiatry and Psychology, Victoria, Australia.