Medical Affairs Department, Kyowa Kirin Co., Ltd, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan. Department of Internal Medicine (Nephrology Unit), Hyogo Prefectural Nishinomiya Hospital, Nishinomiya, Japan. Department of Healthcare Epidemiology, School of Public Health, Faculty of Medicine, Kyoto University, Kyoto, Japan. Department of Pediatrics, Kobe City Medical Center General Hospital, Kobe, Japan. Institute for Health Outcomes and Process Evaluation Research (iHope International), Kyoto, Japan. Medical Affairs Department, Kyowa Kirin Co., Ltd, Otemachi Financial City Grand Cube, 1-9-2 Otemachi, Chiyoda-ku, Tokyo, 100-0004, Japan. shinji.asada.qd@kyowakirin.com. Human Health Sciences, Kyoto University Graduate School of Medicine, Kyoto, Japan. The Keihanshin Consortium for Fostering the Next Generation of Global Leaders in Research (K-CONNEX), Kyoto, Japan. Division of Nephrology, Endocrinology and Metabolism, Tokai University School of Medicine, Isehara, Japan. Division of Nephrology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.