1. Department of Psychiatry Kinoko Espoir Hospital Kasaoka Japan
2. Department of Neuropsychiatry Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
3. Department of Laboratory Medicine and Pathology Zikei Institute of Psychiatry Okayama Japan
4. Department of Neurology National Hospital Organization Minami‐Okayama Medical Center Okayama Japan
5. Department of Psychiatry Takaoka Hospital Himeji Japan
6. Department of Neuropsychiatry Okayama University Hospital Okayama Japan
7. Department of Molecular Genetics Brain Research Institute, Niigata University Niigata Japan