1. Division of Rheumatology, Department of Internal Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
2. Department of Kidney and Vascular Pathology, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan
3. Department of Respiratory Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
4. Department of Human Pathology, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
5. Division of General Medicine, Center for Community Medicine, Jichi Medical University School of Medicine, Tochigi, Japan
6. Division of Cardiology, Department of Internal Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Ishikawa, Japan
7. Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
8. Yamaguchi's Pathology Laboratory, Chiba, Japan