Shinichiro Shinzaki

Present address: Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo Medical University, Hyogo, Japan

Division of Gastroenterology and Hepatology, Department of Internal Medicine, Toho University Sakura Medical Center, 564-1 Shimoshizu, Sakura, Chiba, 285-8741, Japan

Katsuyoshi Matsuoka

Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan

Hajime Yamazaki & Shunichi Fukuhara

Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan

Masakazu Nagahori & Toshimitsu Fujii

Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, Tokyo, Japan

Taku Kobayashi & Toshifumi Hibi

Institute of Gastroenterology, Tokyo Women’s Medical University, Tokyo, Japan

Teppei Omori

Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan

Yohei Mikami

Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Osaka, Japan

Shinichiro Shinzaki

Division of Gastroenterology and Hepatology, Department of Internal Medicine, The Jikei University School of Medicine, Tokyo, Japan

Masayuki Saruta

Department of Gastroenterology and Hepatology, Kyorin University School of Medicine, Tokyo, Japan

Minoru Matsuura & Tadakazu Hisamatsu

Inflammatory Bowel Disease Center and Department of Surgery, Yokkaichi Hazu Medical Center, Mie, Japan

Takayuki Yamamoto

Inflammatory Bowel Disease Center, Sapporo Kosei General Hospital, Hokkaido, Japan

Satoshi Motoya

Advanced Research Institute, Tokyo Medical and Dental University, Tokyo, Japan

Mamoru Watanabe

Japan Medical Office, Takeda Pharmaceutical Company Limited, Tokyo, Japan

Jovelle Fernandez

Department of Health Policy Management, Johns Hopkins Bloomberg School of Public Health, Maryland, USA

Shunichi Fukuhara