Takehiko Wada1, Takuji Ishimoto2,3, Izaya Nakaya4, Takehiko Kawaguchi5, Tadashi Sofue6, Sayaka Shimizu7, Noriaki Kurita8, Sho Sasaki9, Hiroki Nishiwaki10, Masahiro Koizumi1, Shoji Saito2, Nobuhiro Nishibori2, Yuji Oe11, Mai Yoshida11, Yoshitaka Miyaoka12, Shin'ichi Akiyama2, Yuya Itano2, Masaki Okazaki2, Takaya Ozeki2, Daisuke Ichikawa13, Hideyo Oguchi14, Satoshi Kohsaka15, Shiho Kosaka16, Yuki Kataoka17, Hideaki Shima18, Sayuri Shirai13, Kazuhiro Sugiyama19, Tomo Suzuki20, Daisuke Son21, Tomomi Tanaka22, Eishu Nango23, Kakuya Niihata8, Yoko Nishijima24, Kandai Nozu25, Midori Hasegawa26, Rei Miyata27, Masahiko Yazawa13, Yoshihiro Yamamoto28, Ryohei Yamamoto29, Yugo Shibagaki13, Kengo Furuichi30, Hirokazu Okada31, Ichiei Narita32. 1. Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Kanagawa, Japan. 2. Department of Nephrology, Nagoya University Graduate School of Medicine, Aichi, Japan. 3. Department of Nephrology and Rheumatology, Aichi Medical University, Aichi, Japan. 4. Department of Nephrology and Rheumatology, Iwate Prefectural Central Hospital, Iwate, Japan. 5. Department of Nephrology, National Hospital Organization Chibahigashi National Hospital, Chiba, Japan. 6. Department of CardioRenal and Cerebrovascular Medicine, Kagawa University, Kagawa, Japan. 7. Research Department, Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan. 8. Department of Clinical Epidemiology, Graduate School of Medicine, Fukushima Medical University, Fukushima, Japan. 9. Department of Nephrology/Clinical Research Support Office, Iizuka Hospital, Fukuoka, Japan. 10. Division of Nephrology, Showa University Fujigaoka Hospital, Kanagawa, Japan. 11. Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Graduate School of Medicine, Miyagi, Japan. 12. Department of Nephrology, Tokyo Medical University, Tokyo, Japan. 13. Division of Nephrology and Hypertension, St. Marianna University School of Medicine, Kanagawa, Japan. 14. Department of Nephrology, Faculty of Medicine, Toho University, Tokyo, Japan. 15. Department of Pharmacy, Tokyo Medical University Hachioji Medical Center, Tokyo, Japan. 16. Department of Nursing, School of Health Sciences, Tokyo University of Technology, Tokyo, Japan. 17. Department of Internal Medicine, Kyoto Min-Iren Asukai Hospital, Kyoto, Japan. 18. Division of Internal Medicine, Yoshieikai Hospital, Osaka, Japan. 19. Division of Nephrology, Tokoname City Hospital, Aichi, Japan. 20. Department of Nephrology, Kameda Medical Center, Chiba, Japan. 21. Department of Community-Based Family Medicine, Tottori University, Tottori, Japan. 22. Nephrotic Syndrome Patients Association Japan, Tokyo, Japan. 23. Department of Family Medicine, Seibo International Catholic Hospital, Tokyo, Japan. 24. Department of Cardiorenal Disease Regional Medicine, Kagawa University, Kagawa, Japan. 25. Department of Pediatrics, Kobe University Graduate School of Medicine, Hyogo, Japan. 26. Department of Nephrology, Fujita Health University School of Medicine, Aichi, Japan. 27. Library Support Division, Kansai-kan, National Diet Library, Kyoto, Japan. 28. Division of Nephrology, TOYOTA Memorial Hospital, Aichi, Japan. 29. Health and Counseling Center, Osaka University, Osaka, Japan. 30. Department of Nephrology, Kanazawa Medical University, Ishikawa, Japan. 31. Department of Nephrology, Saitama Medical University, Saitama, Japan. hirookda@saitama-med.ac.jp. 32. Division of Clinical Nephrology and Rheumatology, Niigata University, Niigata, Japan.