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机构:
Guangdong Gen Hosp, Dept Gastroenterol, Guangzhou, Guangdong, Peoples R China
Guangdong Acad Med Sci, Guangzhou, Guangdong, Peoples R China
South China Univ Technol, Guangdong Geriatr Inst, Guangdong Gen Hosp, Guangzhou, Guangdong, Peoples R China
South China Univ Technol, Guangdong Acad Med Sci, Guangzhou, Guangdong, Peoples R China Southern Med Univ, Sch Clin Med 1, Guangzhou, Guangdong, Peoples R China