[1] Eli Lilly & Co, Lilly Res Labs, Indianapolis, IN 46285 USA
[2] Harvard Univ, McLean Hosp, Sch Med, Dept Psychiat, Belmont, MA 02178 USA
[3] Hosp Clin Barcelona, IDIBAPS, Bipolar Disorders Program, Barcelona, Spain
[4] Stanford Univ, Dept Psychiat, Stanford, CA USA
[5] Case Western Reserve Univ, Dept Psychiat, Cleveland, OH 44106 USA
[6] Harvard Univ, Massachusetts Gen Hosp, Sch Med, Dept Psychiat, Cambridge, MA 02138 USA
[7] Univ Texas, Hlth Sci Ctr, Dept Psychiat, San Antonio, TX 78285 USA
[8] Eli Lilly & Co, Basingstoke, Hants, England