The 13th Annual Meeting of the Asian Organization for Crohn’s and Colitis（AOCC2025）

*Kenji Watanabe^1,21, Masanori Nojima², Hiroshi Nakase³, Shu Tamano², Minoru Matsuura⁴, Nobuo Aoyama⁵, Taku Kobayashi⁶, Hirotake Sakuraba⁷, Masakazu Nishishita⁸, Kaoru Yokoyama⁹, Motohiro Esaki¹⁰, Fumihito Hirai¹¹, Masakazu Nagahori¹², Sohachi Nanjo¹³, Teppei Omori¹⁴, Satoshi Tanida¹⁵, Yoshihiro Yokoyama³, Kei Moriya¹⁶, Atsuo Maemoto¹⁷, Osamu Handa¹⁸, Naoki Ohmiya¹⁹, Shinichiro Shinzaki^20,21, Shingo Kato²², Hiroki Tanaka²³, Toshio Uraoka²⁴, Noritaka Takatsu²⁵, Hideo Suzuki²⁶, Atsushi Nishida²⁷, Junji Umeno²⁸, Yoshiyuki Mishima²⁹, Kenji Tsuchida³⁰, Mikihiro Fujiya³¹, Sakiko Hiraoka³², Makoto Okabe³³, Takahiko Toyonaga³⁴, Akira Ando²⁷, Tadakazu Hisamatsu⁴ (1. Toyama University, Department of Internal Medicine for Inflammatory Bowel Disease, Toyama, Japan., 2. The University of Tokyo, Center for Translational Research- The Institute of Medical Science Hospital, Tokyo, Japan., 3. Sapporo Medical University School of Medicine, Department of Gastroenterology and Hepatology, Sapporo, Japan., 4. Kyorin University School of Medicine, Department of Gastroenterology and Hepatology, Mikata, Japan., 5. Aoyama Clinic, Gastroenterology, Kobe, Japan., 6. Kitasato University Kitasato Institute Hospital, Center for Advanced IBD Research and Treatment- Department of Gastroenterology, Tokyo, Japan., 7. Hirosaki University Graduate School of Medicine, Department of Gastroenterology and Hematology, Hirosaki, Japan., 8. Nishishita Gastrointestinal Hospital, Gastroenterology, Osaka, Japan., 9. Kitasato University School of Medicine, Department of Gastroenterology, Sagamihara, Japan., 10. Saga University, Division of Gastroenterology- Department of Internal Medicine, Saga, Japan., 11. Fukuoka University Faculty of Medicine, Department of Gastroenterology and Medicine, Fukuoka, Japan., 12. Institute of Science Tokyo Hospital, Clinical Research Center, Tokyo, Japan., 13. University of Toyama, Third Department of Internal Medicine, Toyama, Japan., 14. Tokyo Women's Medical University, Institute of Gastroenterology, Tokyo, Japan., 15. Nagoya City University Graduate School of Medical Sciences, Education and Research Center for Community Medicine, Nagoya, Japan., 16. Nara Medical University, Department of Gastroenterology, Nara, Japan., 17. Sapporo Higashi Tokushukai Hospital, IBD Center, Sapporo, Japan., 18. Kawasaki Medical School, Department of Internal Medicine- Division of Gastroenterology, Kurashiki, Japan., 19. Fujita Health University School of Medicine, Department of Advanced Endoscopy, Toyoake, Japan., 20. Osaka University Graduate School of Medicine- Hyogo Medical University, Department of Gastroenterology, Osaka, Japan., 21. Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo Medical University, Nishinomiya, Japan, 22. Saitama Medical Center- Saitama Medical University, Department of Gastroenterology and Hepatology, Kawagoe, Japan., 23. Sapporo IBD Clinic, Gastroenterology, Sapporo, Japan., 24. Gunma University Graduate School of Medicine, Department of Gastroenterology and Hepatology, Maebashi, Japan., 25. Fukuoka University Chikushi Hospital, Inflammatory Bowel Disease Center, Fukuoka, Japan., 26. University of Tsukuba, Department of Gastroenterology, Tsukuba, Japan., 27. Shiga University of Medical Science, Department of Medicine, Otsu, Japan., 28. Graduate School of Medical Sciences- Kyushu University, Department of Medicine and Clinical Science, Fukuoka, Japan., 29. Shimane University Faculty of Medicine, Department of Internal Medicine II, Matsue, Japan., 30. Nagoya City University West Medical Center, Gastroenterology, Nagoya, Japan., 31. Asahikawa Medical University, Gastroenterology and Endoscopy- Division of Metabolism and Biosystemic Science- Gastroenterology- and Hematology/Oncology- Department of Medicine, Asahikawa, Japan., 32. Okayama University Graduate School of Medicine, Department of Gastroenterology and Hepatology, Okayama, Japan., 33. Graduate School of Medicine- Kyoto University, Department of Gastroenterology and Hepatology, Kyoto, Japan., 34. The Jikei University School of Medicine, Department of Gastroenterology and Hepatology- Division of Internal Medicine, Tokyo, Japan.)

*Qian Zhang¹, Shanshan Wu¹ (1. Beijing Friendship Hospital, Capital Medical University)

*Yan Zhang¹, Yanqing Li¹ (1. Qilu Hospital of Shandong University)

Min Kyu Kim¹, Seung Hwan Shin¹, Cheol-Hyung Lee¹, Soyoung Kim¹, Jong Whan Kim¹, Songhyun Lee¹, Seung Wook Hong¹, Sang Hyoung Park^1,2, Dong-Hoon Yang¹, Byong Duk Ye^1,2, Jeong-Sik Byeon¹, Seung-Jae Myung¹, Suk-Kyun Yang^1,2, *Sung Wook Hwang^1,2 (1. Department of Gastroenterology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea, 2. Inflammatory Bowel Disease Center, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea)

*Jie Liang¹, Liu qing Zhao¹, Jia qi Zhang¹, Kai chun Wu¹ (1. Xijjng Hospital of Diegestive Diseases, Xi'an, China)

*Jian Wan¹, Zhuo Wang¹, Jun Shen², Jie Zhong³, Naizhong Hu⁴, Lanxiang Zhu⁵, Yinglei Miao⁶, Wensong Ge⁷, Zhonghui Wen⁸, Yufang Wang⁸, Jiaming Zhou¹, Yong Lv¹, Jie Liang¹, Kaichun Wu¹ (1. Xijing Hospital of Digestive Diseases, Fourth Military Medical University, 2. Department of Gastroenterology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 3. Department of Gastroenterology, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, 4. Department of Gastroenterology, The First Affiliated Hospital of Anhui Medical University, 5. Department of Gastroenterology, The First Affiliated Hospital of Soochow University, 6. Department of Gastroenterology, The First Affiliated Hospital of Kunming Medical University, 7. Department of Gastroenterology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, 8. Department of Gastroenterology and Hepatology, West China Hospital, Sichuan University)

*Jeongkuk Seo¹, Ju Won Lee², Kyuwon Kim¹, Hansol Lim¹, Sun-Young Jung², Chang Hwan Choi¹ (1. Chung-Ang University College of Medicine, 2. College of Pharmacy, Chung-Ang University)

*Yutong Chen^1,2,3, Rongliwen Ou^1,2,3, Ying Xiao^1,2,3, Xiaowei Liu^1,2,3 (1. Department of Gastroenterology, Xiangya Hospital, Central South University,Changsha, Hunan, China, 2. Hunan International Scientific and Technological Cooperation Base of Artificial Intelligence Computer Aided Diagnosis and Treatment for Digestive Disease, Changsha,Hunan,China, 3. National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha,Hunan, China)

Tian Fu^1,2, Lintao Dan^1,3, Sidan Wang¹, Xing Wu¹, Jiangwei Sun⁴, Shuai Yuan⁴, Alicja Wolk⁴, Jonas F Ludvigsson^4,5, Xiaoyan Wang¹, Susanna C Larsson^4,6, *Jie Chen¹, Xue Li⁷ (1. The Third Xiangya Hospital of Central South University, 2. Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 3. Ruijin Hospital, Shanghai Jiaotong University School of Medicine, 4. Karolinska Institutet, 5. Örebro University Hospital, 6. Uppsala University, 7. The Second Affiliated Hospital, Zhejiang University School of Medicine)

*Riona Sutanto¹, Mario Sutanto¹ (1. Faculty of Medicine, Pelita Harapan University, Tangerang, Indonesia)

Qian Zhang¹, *Haoxi Liu¹, Si Liu¹, Shengtao Zhu¹, Shutian Zhang¹, Zhiyong Yang², Shanshan Wu¹ (1. Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, 2. Department of Computational Biology and Medical Big Data, Faculty of Computer Science and Control Engineering, Shenzhen University of Advanced Technology)

Qian Zhang¹, *Yuhang Liu¹, Xin Tong¹, Ye Zong¹, Shanshan Wu¹ (1. Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China)

*Qian Zhang¹, Shanshan Wu¹ (1. Beijing Friendship Hospital, Capital Medical University)