1. Department of Psychiatry (Sankar, Panchal, Goldman, Colic, Villa, Kim, Carrubba, Lecza, Silverman, Blumberg), Interdepartmental Neuroscience Program (Goldman), and Child Study Center (Lebowitz, Silverman, Blumberg), Yale School of Medicine, New Haven, Connecticut; Department of Psychiatry, University of Pittsburgh Medical Center, Pittsburgh (Swartz).