1. Division of Medical Treatment and Rehabilitation, Center for Forensic Mental Health, Chiba University, Chiba, Japan
2. Department of Psychiatry, Gakuji-kai Kimura Hospital, Chiba, Japan
3. Department of Psychiatry, School of Medicine, International University of Health and Welfare, Chiba, Japan
4. Department of Psychiatry, Chiba University Graduate School of Medicine, Chiba, Japan
5. Department of Neuropsychiatry, Kansai Medical University, Osaka, Japan