1. Division of Clinical Nephrology and Rheumatology; Niigata University Graduate School of Medical and Dental Sciences; Niigata Japan
2. Department of Internal Medicine; Niigata Rinko Hospital; Niigata Japan
3. Department of Internal Medicine; Niigata Cancer Center Hospital; Niigata Japan
4. Department of Pathology; Nippon Medical School; Tokyo Japan
5. Department of Pathology (Analytic Human Pathology); Nippon Medical School; Tokyo Japan
6. Graduate School of Health Sciences, Department of Health and Sport Science; Matsumoto University; Matsumoto Japan