1. Westat, Rockville, Maryland (Ghose, George, Ren, Zhu, Rosenblatt); University of Maryland School of Medicine, Baltimore (Goldman); Department of Psychiatry, Columbia University Vagelos College of Physicians and Surgeons, and New York State Psychiatric Institute, New York City (Dixon). Dr. Dixon is Editor of the journal; Marvin Swartz was decision editor on the manuscript.