[1] Washington Univ, Dept Neurol, St Louis, MO 63110 USA
[2] Indiana Univ, Sch Med, Dept Neurol, Indianapolis, IN 46202 USA
[3] NYU, Sch Med, Dept Psychiat, New York, NY USA
[4] Tech Univ Munich, Dept Psychiat, D-8000 Munich, Germany
[5] Univ Mainz, Sch Med, Dept Neurobiochem, Mainz, Germany
[6] Inova Hlth Res Inc, Kelowna, BC, Canada
[7] Univ Southampton, Southampton, Hants, England
[8] Janssen Pharmaceut Prod LP, Clin R&D, CNS A, Titusville, NJ USA