1. Department of Nephrology, Ichiyokai Harada Hospital, Hiroshima, Japan
2. Department of Nephrology, Hiroshima University Hospital, Hiroshima, Japan
3. Department of Surgery, Ichiyokai Harada Hospital, Hiroshima, Japan
4. Ichiyokai Ichiyokai Clinic, Hiroshima, Japan
5. Ichiyokai East Clinic, Hiroshima, Japan
6. Ichiyokai Yokogawa Clinic, Hiroshima, Japan