1. Department of Neuropsychiatry Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
2. Okayama Psychiatric Medical Center Okayama Japan
3. Kanagawa Psychiatric Center Kanagawa Japan
4. Shizuoka Psychiatric Medical Center Shizuoka Japan
5. Department of Forensic Psychiatry National Center Hospital, National Center of Neurology and Psychiatry Tokyo Japan
6. Department of Epidemiology Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan