1. Department of Clinical Research and Quality Management University of the Ryukyus Graduate School of Medicine Okinawa Japan
2. Department of Psychiatry Gunma Prefectural Psychiatric Medical Center Isesaki Japan
3. Department of Clinical Pharmacology and Therapeutics University of the Ryukyus Graduate School of Medicine Okinawa Japan
4. Department of Prevention and Analysis of Cardiovascular Diseases Kagoshima University Graduate School of Medical and Dental Sciences Kagoshima Japan