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Shinya Sugimoto
Department of Gastroenterology, Yokohama Municipal Citizen's Hospital, Japan
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Takeshi Mizukami
Endoscopy Center, NHO Kurihama Medical and Addiction Center, Japan
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Yuichi Morohoshi
Department of Gastroenterology, Yokohama Municipal Citizen's Hospital, Japan
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Hirokazu Komatsu
Department of Gastroenterology, Yokohama Municipal Citizen's Hospital, Japan