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Retrospective Cohort Study
Retrospective Study
Yoji Takeuchi, Takeshi Yamashina, Noriko Matsuura, Takashi Ito, Mototsugu Fujii, Kengo Nagai, Fumi Matsui, Tomofumi Akasaka, Noboru Hanaoka, Koji Higashino, Hiroyasu Iishi, Ryu Ishihara, Henrik Thorlacius, Noriya Uedo 
World J Gastrointest Endosc 7(17):1250-1256. Published online Nov 25, 2015. doi: 10.4253/wjge.v7.i17.1250
Case Report