1. Department of Psychiatry, Minakuchi Hospital, Koka, Japan.
2. Department of Psychiatry, Kinoko Espoir Hospital, Kasaoka, Japan.
3. Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
4. Minamikusatsu Keyaki Clinic, Kusatsu, Japan.