1. Department of Nephrology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
2. Department of Urology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
3. Department of Radiology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
4. Department of Pathology, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
5. Department of Cardiovascular Surgery, Uonuma Institute of Community Medicine, Niigata University Medical and Dental Hospital, Japan
6. Division of Clinical Nephrology and Rheumatology, Niigata University Graduate School of Medical and Dental Science, Japan