1. Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan,
2. Division of Pathophysiology, Okayama University Graduate School of Health Sciences, Okayama, Japan,
3. Department of Medicine, University of Hawaii, Honolulu, HI, USA,
4. Department of Pathology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan,
5. Nephrology Center, Toranomon Hospital Kajigaya, Kanagawa, Japan,
6. Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan