Masakuni Kobayashi 1, Waku Hatta 3, Yosuke Tsuji 2, Toshiyuki Yoshio 4, Naomi Kakushima 5, Shu Hoteya 6, Hisashi Doyama 7, Yasuaki Nagami 8, Takuto Hikichi 9, Yoshinori Morita 10, Tetsuya Sumiyoshi 11, Mikitaka Iguchi 12, Hideomi Tomida 13, Takuya Inoue 14, Tomoyuki Koike 3, Tatsuya Mikami 15, Kenkei Hasatani 16, Jun Nishikawa 17, Tomoaki Matsumura 18, Hiroko Nebiki 19, Dai Nakamatsu 20, Ken Ohnita 21, Haruhisa Suzuki 22, Hiroya Ueyama 23, Yoshito Hayashi 24, Mitsushige Sugimoto 25, Shinjiro Yamaguchi 26, Tomoki Michida 27, Tomoyuki Yada 28, Yoshiro Asahina 29, Toshiaki Narasaka 30, Shiko Kuribayashi 31, Shu Kiyotoki 32, Katsuhiro Mabe 33, Tomohiro Nakamura 34, Naoki Nakaya 35, Mitsuhiro Fujishiro 36, Atsushi Masamune 3
1 Department of Endoscopy, Jikei University School of Medicine, Tokyo, Japan
2 Department of Gastroenterology, Tokyo University, Bunkyo-ku, Tokyo, Japan
3 Division of Gastroenterology, Tohoku University Graduate School of Medicine, Aoba-ku, Sendai, Japan
4 Department of Gastroenterology, Cancer Institute Hospital, Koto-ku, Tokyo, Japan
5 Division of Endoscopy, Shizuoka Cancer Center, Nagizumi, Shizuoka, Japan
6 Department of Gastroenterology, Toranomon Hospital, Minato-ku, Tokyo, Japan
7 Department of Gastroenterology, Ishikawa Prefectural Central Hospital, Kuratsuki-Higashi, Kanazawa, Japan
8 Department of Gastroenterology, Osaka City University Graduate School of Medicine, Abeno-ku, Osaka, Japan
9 Department of Endoscopy, Fukushima Medical University Hospital, Hikarigaoka, Fukushima, Japan
10 Department of Gastroenterology, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Japan
11 Department of Gastroenterology, Tonan Hospital, Sapporo, Hokkaido, Japan
12 Second Department of Internal Medicine, Wakayama Medical University, Kimiidera, Wakayama, Japan
13 Department of Gastroenterology and Metabology, Ehime University Graduate School of Medicine, Toon, Ehime, Japan
14 Division of Gastroenterology and Hepatology, Osaka General Medical Center, Sumiyoshi-ku, Osaka, Japan
15 Division of Endoscopy, Hirosaki University Hospital, Hirosaki, Aomori, Japan
16 Department of Gastroenterology, Fukui Prefectural Hospital, Fukui-shi, Fukui, Japan
17 Faculty of Laboratory Science, Yamaguchi University Graduate School of Medicine, Ube-shi, Yamaguchi, Japan
18 Department of Gastroenterology, Chiba University Graduate School of Medicine, Chiba-shi, Chiba, Japan
19 Department of Gastroenterology, Osaka City General Hospital, Miyakojima-ku, Osaka, Japan
20 Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka-shi, Osaka, Japan
21 Department of Gastroenterology and Hepatology, Nagasaki University Hospital, Nagasaki-shi, Nagasaki, Japan
22 Endoscopy Division, National Cancer Center Hospital, Chuo-ku, Tokyo, Japan
23 Department of Gastroenterology, Juntendo university school of Medicine, Bunkyo-ku, Tokyo, Japan
24 Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita-shi, Osaka, Japan
25 Division of Digestive Endoscopy, Shiga University of Medical Science Hospital, Otsu-shi, Shiga, Japan
26 Division of Gastroenterology, Kansai Rosai Hospital, Amagasaki-shi, Hyogo, Japan
27 Department of Gastroenterology and Hepatology, Saitama Medical Center, Kawagoe-shi, Saitama, Japan
28 Division of Gastroenterology and Hepatology, Kohnodai Hospital, National Center for Global Health and Medicine, Ichikawa-shi, Chiba, Japan
29 Division of Gastroenterology, Kanazawa University Hospital, Kanazawa-shi, Ishikawa, Japan
30 Department of Gastroenterology, University of Tsukuba, Tsukuba-shi, Ibaraki, Japan
31 Department of Gastroenterology and Hepatology, Gunma University Graduate School of Medicine, Maebashi-shi, Gunma, Japan
32 Department of Gastroenterology, Shuto General Hospital, Yanai-shi, Yamaguchi, Japan
33 Department of Gastroenterology, National Hospital Organization Hakodate Hospital, Hakodate-shi, Hokkaido, Japan
34 Department of Health Record Informatics, Tohoku University, Sendai-shi, Miyagi, Japan
35 Department of Health Sciences, Saitama Prefectural University, Koshigaya-shi, Saitama, Japan
36 Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya-shi, Aichi, Japan