1. Division of Rheumatology; Department of Internal Medicine; Kanazawa University Graduate School of Medicine; Kanazawa Japan
2. Department of Internal Medicine; Takaoka City Hospital; Takaoka Japan
3. Department of Advanced Research in Community Medicine; Kanazawa University Graduate School of Medical Sciences; Kanazawa Japan
4. Department of Kidney and Vascular Pathology; Faculty of Medicine; University of Tsukuba; Tsukuba Japan