1. Department of Neuropsychiatry, Okayama University Graduate School of Medicine and Dentistry, Japan,
2. Zikei Institute of Psychiatry, Okayama, Japan
3. Kinoko Espoir Hospital, Okayama, Japan
4. Department of Neuropsychiatry, Okayama University Graduate School of Medicine and Dentistry, Japan
5. Sanyo Hospital, Okayama, Japan