1. Renal and Rheumatology Division, Internal Medicine Department, Okinawa Prefectural Nanbu Medical Center and Children’s Medical Center
2. Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine
3. Division of Nephrology and Hypertension, Department of Internal Medicine, St Marianna School of Medicine
4. Okayama Psychiatric Medical Center
5. Clinical Research Support Center, Nakamura Clinic