School of Chinese Medicine Beijing University of Chinese Medicine Beijing 100029 China;
Department of Gastroenterology Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine Beijing 100700 China;
School of Chinese Medicine Beijing University of Chinese Medicine Beijing 100029 ChinaDepartment of Gastroenterology Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine Beijing 100700 China;
Department of Emergency Medicine Dongfang Hospital Affiliated to Beijing University of Chinese Medicine Beijing 100078 China;
Department of Neurosurgery China-Japan Friendship Hospital Beijing 100029 China;
Department of General Surgery China-Japan Friendship Hospital Beijing 100029 China;
Department of Oncology Xiyuan Hospital Affiliated to China Academy of Chinese Medical Sciences Beijing 100091 China;
Institute of Basic Research in Clinical Medicine China Academy of Chinese Medical Sciences Beijing 100700 China;
School of Chinese Medicine Beijing University of Chinese Medicine Beijing 100029 China;
Chronic atrophic gastritis; Malignant transformation; Risk assessment; Traditional Chinese medicine; Protocol;