1. Division of Nephrology, Shimane Prefectural Central Hospital, Japan
2. Division of Nephrology, Izumo Citizens Hospital, Japan
3. Division of Dermatology, Shimane Prefectural Central Hospital, Japan
4. Division of Pathology, Shimane Prefectural Central Hospital, Japan
5. Division of Nephrology, Department of Internal Medicine, Shimane University Faculty of Medicine, Japan