[1] Clin Neurosci Res Ctr, Res, Dartford, England
[2] Univ N Carolina, Sch Med, Mental Hlth & Neurosci Clin Res C, Chapel Hill, NC USA
[3] John Umstead Hosp, Butner, NC USA
[4] Univ N Carolina, Dept Psychiat, Chapel Hill, NC USA
[5] Univ Toronto, Dept Psychiat, Toronto, ON, Canada
[6] Univ Med Ctr, Dept Psychiat, Utrecht, Netherlands
[7] Univ Penn, Dept Psychiat, Philadelphia, PA 19104 USA
[8] Harvard Univ, Sch Med, Bipolar & Psychot Disorders Clin, Belmont, MA 02178 USA
[9] Stanford Univ, Sci Stanford Univ Med Ctr, Stanford, CA 94305 USA
[10] Univ Hartford, Sch Med, Massachusetts Mental Hlth Ctr, Boston, MA USA
[11] Emory Univ, Sch Med, Atlanta, GA 30322 USA
[12] Univ Massachusetts, Sch Med, Clin Res, Boston, MA 02125 USA
[13] Univ Cincinnati, Cincinnati, OH 45221 USA
[14] Eli Lilly & Co, Lilly Res Labs, Indianapolis, IN 46285 USA