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Minoru UKIDA
Departmend of Gastroenterology, Iwakuni National Hospital
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Sadaka IWAHARA
Departmend of Gastroenterology, Iwakuni National Hospital
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Yoshihiro SHIMADA
First Department of Internal Medicine, Okayama University Medical School
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Yasuhiro ISHIKAWA
First Department of Internal Medicine, Okayama University Medical School