1. Department of Psychiatry, Minakuchi Hospital, Koka City, Japan; Departement of Psychiatry, Shiga University of Medical Science, Shiga, Japan
2. Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
3. Department of Psychiatry, Kinoko Espoir Hospital, Okayama, Japan
4. Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan; Department of laboratory Medicine Zikei Institute of Psychiatry, Okayama, Japan
5. Department of Psychiatry, Minakuchi Hospital, Koka City, Japan
6. Department of Psychiatry, Shiga University of medical Science, Shiga, Japan