[1] Univ Tokyo, Grad Sch Med, Dept Psychiat Nursing, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[2] Univ Tokyo, Grad Sch Med, Dept Mental Hlth, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[3] Natl Ctr Neurol & Psychiat, Natl Inst Mental Hlth, Dept Drug Dependence Res, 4-1-1 Ogawa Higashi, Kodaira, Tokyo 1878553, Japan
[4] Univ Tokyo, Grad Sch Med, Dept Biostat, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan
[5] Univ Tokyo, Grad Sch Publ Policy, Dept Hlth Technol Assessment & Publ Policy, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan