1. Department of Psychiatry; Kinoko Espoir Hospital; Okayama Japan
2. Department of Neuropsychiatry; Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Okayama Japan
3. Department of Psychiatry; Zikei Hospital; Okayama Japan
4. Department of Neurology; Saiseikai Nakatsu Hospital and Medical Center; Osaka Japan
5. Department of Psychiatry; Zikei Institute of Psychiatry; Okayama Japan
6. Department of Neurology; National Hospital Organization Minami-Okayama Medical Center; Okayama Japan