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Yoshihiro Nishikawa
Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Japan Digestive Disease Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital, Japan
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Yojiro Sakuma
Department of Gastroenterology and Hepatology, Graduate School of Medicine, Kyoto University, Japan Digestive Disease Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital, Japan
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Shujiro Yazumi
Digestive Disease Center, The Tazuke Kofukai Medical Research Institute, Kitano Hospital, Japan