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Yoshihiro Otsuka, Kazuya Akahoshi, Kayoko Yasunaga, Masaru Kubokawa, Junya Gibo, Shigeki Osada, Kayo Tokumaru, Kazuaki Miyamoto, Takao Sato, Yuki Shiratsuchi, Masafumi Oya, Hidenobu Koga, Eikichi Ihara, Kazuhiko Nakamura 
World J Gastrointest Oncol 9(10):416-422. Published online Oct 15, 2017. doi: 10.4251/wjgo.v9.i10.416
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