中国医药导报
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中国医药导报  2020, Vol. 17 Issue (31): 111-114    DOI:
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Analysis of the cause of emergency consultation in 1187 cases of upper gastrointestinal bleeding
SHEN Lei   SUN Gang   ZHANG Xiaomei
Department of Gastrointestinal, the First Medical Center, Chinese People′s Liberation of China General Hospital, Beijing   100853, China
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