机构:
Chinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Gastroenterol, Beijing, Peoples R ChinaChinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Gastroenterol, Beijing, Peoples R China
Yan, Xuemin
Li, Jun
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机构:
Peking Univ, Sch Hlth Humanities, Dept Language & Culture Med, Beijing, Peoples R ChinaChinese Acad Med Sci, Peking Union Med Coll Hosp, Dept Gastroenterol, Beijing, Peoples R China