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Jiro Watari, Shigemitsu Ueyama, Toshihiko Tomita, Hisatomo Ikehara, Kazutoshi Hori, Ken Hara, Takahisa Yamasaki, Takuya Okugawa, Takashi Kondo, Tomoaki Kono, Katsuyuki Tozawa, Tadayuki Oshima, Hirokazu Fukui, Hiroto Miwa 
World J Gastrointest Endosc 8(16):558-567. Published online Aug 25, 2016. doi: 10.4253/wjge.v8.i16.558
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