1. Nephrology Center, Toranomon Hospital Kajigaya, Japan
2. Nephrology Center, Toranomon Hospital, Japan
3. Department of Pathology, Toranomon Hospital, Japan
4. Department of Human Pathology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Japan
5. Department of Gastroenterological Surgery, Toranomon Hospital, Japan
6. Department of Hematology, Nephrology, and Rheumatology, Akita University Graduate School of Medicine, Japan