1. Department of Psychiatry, Chiba University Graduate School of Medicine, Chiba, Japan
2. Department of Psychiatry, Douwa-kai Chiba Hospital, Funabashi, Japan
3. Division of Medical Treatment and Rehabilitation, Chiba University Center for Forensic Mental Health, Chiba, Japan
4. Department of Psychiatry, Shirayuri-kai Ichihara Tsuruoka Hospital, Ichihara, Japan
5. Department of Psychiatry, Doujin-kai Kisarazu Hospital, Kisarazu, Japan
6. Department of Psychiatry, Gakuji-kai Kimura Hospital, Chiba, Japan
7. Department of Psychiatry, Naoki-kai Isogaya Hospital, Ichihara, Japan
8. Department of Child Psychiatry, Chiba University Hospital, Chiba, Japan
9. Department of Psychiatry, School of Medicine, International University of Health and Welfare, Narita, Japan