[1] Tohoku Univ, Grad Sch Med, Biol Psychiat, Sendai, Miyagi, Japan
[2] Tokyo Inst Psychiat, Dept Psychiat & Behav Sci, Tokyo, Japan
[3] Univ Toledo, Dept Pharmacol, Toledo, OH USA
[4] New Mexico VA Healthcare Syst, Res Serv, Albuquerque, NM USA
[5] Kobe Univ, Dept Psychiat, Grad Sch Med, Kobe, Hyogo, Japan