[1] Harvard Univ, Sch Med, Dept Psychiat, Belmont, MA 02178 USA
[2] Harvard Univ, Sch Med, Dev Biopsychiat Program, Belmont, MA 02178 USA
[3] Mood Disorders Ctr, New York, NY USA
[4] NYU, Med Ctr, New York, NY 10016 USA
[5] Harvard Univ, Sch Med, Dept Psychiat, Boston, MA 02115 USA
[6] Harvard Univ, Sch Med, Pediat Bipolar Disorder Res Program, Boston, MA 02115 USA
[7] Northeastern Univ, Boston, MA 02115 USA