Individuals and institutes that constitute the ISCHIA Study Group are described in the following list of investigators.

List of investigators Steering Committee: Kiminori Hosoda, Division of Diabetes and Lipid Metabolism, National Cerebral and Cardiovascular Center (NCVC), Osaka, Japan; Kunihiro Nishimura, Department of Preventive Medicine, NCVC, Osaka, Japan; Yoshihiro Miyamoto, Open Innovation Center, NCVC, Osaka, Japan; Takashi Murata, Department of Clinical Nutrition, NHO Kyoto Medical Center and Diabetes Center, NHO Kyoto Medical Center, Kyoto, Japan; Naoki Sakane, Division of Preventive Medicine, Clinical Research Institute, NHO Kyoto Medical Center, Kyoto, Japan; Noriko Satoh-Asahara, Department of Endocrinology, Metabolism, and Hypertension Research, Clinical Research Institute, NHO Kyoto Medical Center, Kyoto, Japan; Masao Toyoda, Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University School of Medicine, Kanagawa, Japan; Yushi Hirota, Division of Diabetes and Endocrinology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan; Munehide Matsuhisa and Akio Kuroda, Diabetes Therapeutics and Research Center, Institute of Advanced Medical Sciences, Tokushima University, Tokushima, Japan; Ken Kato, Diabetes Center, NHO Osaka National Hospital, Osaka, Japan; Ryuji Kouyama, Division of Endocrinology and Metabolism, Department of Internal Medicine, Tsuchiura Kyodo General Hospital, Ibaraki, Japan; Junnosuke Miura, Division of Diabetology and Metabolism, Department of Internal Medicine, Tokyo Women’s Medical University School of Medicine, Tokyo, Japan; Atsuhito Tone, Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama, Japan; Masato Kasahara, Shu Kasama and Shota Suzuki, Institute for Clinical and Translational Science, Nara Medical University Hospital, Nara, Japan; Yukie Ito, Bioethics Supervisory Office, Nara Medical University Hospital, Nara, Japan.

The ISCHIA study Group: The study group consists of the Steering Committee and the following members; Tomokazu Watanabe, Diabetes Center, National Hospital Organization Kyoto Medical Center, Kyoto, Japan; Akiko Suganuma, Division of Preventive Medicine, Clinical Research Institute, NHO Kyoto Medical Center, Kyoto, Japan; Zhuo Shen, Hiroko Kobayashi, Satoshi Takagi, Sari Hoshina, Kanako Shimura and Yukiko Tsuchida, Diabetes Center, Tokyo Women’s Medical University School of Medicine, Tokyo, Japan; Moritsugu Kimura and Nobumichi Saito, Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Tokai University School of Medicine, Kanagawa, Japan; Akira Shimada, Yoichi Oikawa, Atsushi Satomura and Akifumi Haisa, Department of Endocrinology and Diabetes, Saitama Medical University, Saitama, Japan; Satoshi Kawashima, Kanda Naika Clinic, Osaka, Japan; Shu Meguro, Hiroshi Itoh, Yoshifumi Saisho, Junichiro Irie, Masami Tanaka, Masanori Mitsuishi, Yuya Nakajima, Jun Inaishi, Kenichiro Kinouchi, Shintaro Yamaguchi, Arata Itoh, Kazutoshi Sugiyama, Kazuma Yagi, Tami Tsuchiya and Noriko Kodani, Division of Endocrinology, Metabolism and Nephrology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan; Ikki Shimizu and Tetsuya Fukuda, Department of Diabetes, Sakakibara Heart Institute of Okayama, Okayama, Japan; Yoshiki Kusunoki and Tomoyuki Katsuno, Division of Diabetes, Endocrinology and Clinical Immunology, Hyogo College of Medicine, Hyogo, Japan; Yuka Matoba, Yumi Hitaka, Kentaro Abe, Natsuko Tanaka, Ryoko Taniguchi and Toshihiko Nagao, Department of Diabetes, Endocrinology and Metabolism, NHO Kokura Medical Center, Fukuoka, Japan; Kazuyuki Hida, Izumi Iseda, Masaya Takeda, Yuichi Matsushita and Masafumi Tenta, Department of Diabetology and Metabolism, NHO Okayama Medical Center, Okayama, Japan; Tsuyoshi Tanaka, Department of Diabetes and Endocrinology, NHO Mie Chuo Medical Center, Mie, Japan; Kunichi Kouyama and Michiru Fukunaga, Department of Diabetes and Metabolism, NHO Hyogo-Chuo National Hospital, Hyogo, Japan.