Center for Prevention and Early Intervention,National Infrastructures for Translational Medicine,Institute of Clinical Medicine,Peking Union Medical College Hospital,Chinese Academy of Medical Science and Peking Union Medical College,Beijing 100730,China
Department of Gastroenterology,Peking Union Medical College Hospital,Chinese Academy of Medical Science and Peking Union Medical College,Beijing 100730,China
Department of Cancer Epidemiology,National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100021,China
Department of Gastroenterology,People's Hospital of Xizang Autonomous Region,Lhasa,Xizang autonomous region 85000,China
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