Genset S.A., F-91030 Evry, France; Johnson & Johnson Pharmaceutical Research and Development, B-2340 Beerse, Belgium; Research Center of Mental Health, Academy of Medical Sciences, Moscow 113152, Russia; Signalgene Biotechnologies, Montreal, QC, Canada H2M 2NG; Erasmus University Rotterdam, P.O. Box 1738, 3000 DR, Rotterdam, The Netherlands; Institute of Psychiatry, London SE5 8AF, United Kingdom; and National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892 (At 2002-10-03)