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Takahiro Amano, Tokuhiro Matsubara, Tsutomu Nishida, Hiromi Shimakoshi, Akiyoshi Shimoda, Aya Sugimoto, Kei Takahashi, Kaori Mukai, Masashi Yamamoto, Shiro Hayashi, Sachiko Nakajima, Koji Fukui, Masami Inada 
World J Gastroenterol 24(2):290-296. Published online Jan 14, 2018. doi: 10.3748/wjg.v24.i2.290
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