Affiliation: | 1. Department of Child and Adolescent Psychiatry, New York University, New York, NY 10016, U.S.A.;2. Nathan S. Kline Institute for Psychiatric Research, Orangeburg, NY 10962, U.S.A.;3. Department of Biostatistics, Mailman School of Public Health, Columbia University, New York NY, 10032, U.S.A.;4. Department of Mathematics and Statistics, Wright State University, Dayton, OH 45435, U.S.A. |