The 81st Annual Meeting of The Japan Society of Coloproctology

*Haruka Okada¹, Shinya Sugimoto¹, Nobuhiro Nakamoto¹, Ryosuke Kasuga¹, Hiroki Kiyohara¹, Hiroki Kiyohara¹, Yohei Mikami¹, Takanori Kanai¹ (1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Japan)

*Toru Miyake^1,2, Masatsugu Kojima¹, Soichiro Tani¹, Keiji Muramoto¹, Nobuhito Nitta¹, Reiko Otake¹, Haruki Mori¹, Hiromitsu Maehira¹, Sachiko Kaida¹, Tomoharu Shimizu² (1. Department of Gastrointestinal and General Surgery, Shiga University of Medical Science, Japan, 2. Medical Safety Section, Shiga University of Medical Science Hospital, Japan)

*Sayaka Mizutani¹, Kei Nomura^1,2, Masayuki Orikasa², Masashi Omori², Rina Odakura², Masao Koma², Takafumi Maruyama², Kentaro Ito², Tomoyoshi Shibuya², Gaku Nakato¹, Hikaru Watanabe³, Douaa Zakaria³, Akihito Nagahara^1,2, Dai Ishikawa^1,2,3 (1. Innovative Microbiome Therapy Research Center, Juntendo University Graduate School of Medicine, Japan, 2. Department of Gastroenterology, Juntendo University Faculty of Medicine, 3. Metagen Therapeutics, Inc.)

*Hiroaki Kitae¹, Tomohisa Takagi¹, Mariko Kajiwara¹, Kazuhiko Uchiyama¹, Yuji Naito^1,2 (1. Molecular Gastroenterology and Hepatology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan, 2. Department of Human Immunology and Nutrition Science, Kyoto Prefectural University of Medicine)

*Sohei Akuta^1,2, Masataka Hirasaki³, Yume Minagawa¹, Akihito Nakanishi¹, Yusuke Nishi¹, Hisashi Hayashi¹, Takatsugu Fujii¹, Yasuhiro Ishiyama¹, Hirofumi Sugita¹, Chikashi Hiranuma¹, Yasumitsu Hirano¹ (1. Department of Gastrointestinal Surgery, Saitama Medical University International Medical Center, Japan, 2. Department of Gastrointestinal Surgery, Tsuchiura Kyodo General Hospital, Japan, 3. Department of Cancer Genomics Center, Saitama Medical University International Medical Center)

*Kohei Wagatsuma¹, Masashi Idogawa^1,2, Motohiro Esaki³, Taku Kobayashi⁴, Fumihito Hirai⁵, Katsuhiro Arai⁶, Reiko Kunisaki⁷, Shinichiro Shinzaki⁸, Tadakazu Hisamatsu⁹, Hiroshi Nakase¹ (1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan, 2. Division of Medical Genome Sciences, Department of Genomic and Preventive Medicine, Sapporo Medical University School of Medicine, 3. Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Saga University, 4. Center for Advanced IBD Research and Treatment, Kitasato University Kitasato Institute Hospital, 5. Department of Gastroenterology, Faculty of Medicine, Fukuoka University, 6. Center for Pediatric Inflammatory Bowel Disease, Division of Gastroenterology, National Center for Child Health and Development, 7. Inflammatory Bowel Disease Center, Yokohama City University Medical Center, 8. Department of Gastroenterology, Hyogo Medical University School of Medicine, 9. Department of Gastroenterology and Hepatology, Kyorin University School of Medicine)

*Hiroki Kurumi^1,2, Kohei Wagatsuma¹, Yuta Shimomori¹, Kotaro Akita¹, Yoshihiro Yokoyama¹, Tomoe Kazama¹, Hiroshi Nasuno³, Atsushi Yawata⁴, Hajime Isomoto², Hiroshi Nakase¹ (1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Sapporo Medical University School of Medicine, Japan, 2. Division of Gastroenterology and Nephrology, Faculty of Medicine, Tottori University, Japan, 3. Department of Gastroenterology, Kushiro City General Hospital, 4. Department of Gastroenterology and Hepatology, Hakodate Goryoukaku Hospital)

*Akira Andoh (1. Kawanishi City Medical Center, Japan)