[1] Sapporo Med Univ, Grad Sch Med, Dept Neuropsychiat, S1,W17,Chuo Ku, Sapporo 0608556, Japan
[2] Juntendo Univ, Sch Med, Dept Publ Hlth, 2-1-1 Hongo,Bunkyo Ku, Tokyo 1138421, Japan
[3] Natl Inst Mental Hlth, Natl Ctr Neurol & Psychiat, Dept Neuropsychopharmacol, 4-1-1 Ogawa Higasi, Kodaira, Tokyo 1878551, Japan
[4] Meiji Univ, Sch Arts & Letters, Dept Psychosocial Studies, Clin Psychol Course, 1-1 Kanda Surugadai,Chiyoda Ku, Tokyo 1018301, Japan
[5] Saitama Med Univ, Fac Med, Dept Emergency Med, 38 Morohongo,Moroyama Machi,Iruma Gun, Saitama 3500495, Japan
[6] Univ Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 3058575, Japan
[7] Hirayasu Hosp, 346 Kyozuka, Urasoe, Okinawa 9012111, Japan