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Nobuhisa Takase, Keisuke Fukui, Takafumi Tani, Tohru Nishimura, Tomohiro Tanaka, Naoki Harada, Kimihiko Ueno, Manabu Takamatsu, Akihiko Nishizawa, Akiharu Okamura, Kunihiko Kaneda 
World J Gastroenterol 23(20):3752-3757. Published online May 28, 2017. doi: 10.3748/wjg.v23.i20.3752
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