1. Department of Kidney Disease and Hypertension, Osaka General Medical Center
2. Department of Nephrology, Rinku General Medical Center
3. Department of Geriatric Medicine and Nephrology, Osaka University Graduate School of Medicine
4. Department of Nephrology, Japan Community Health Care Organization Osaka Hospital
5. Nagayama Hospital
6. Nogami Hospital
7. Habara Hospital
8. Tamai Internal Medicine and Orthopedic Hospital
9. Nishide Hospital