血尿素氮/肌酐比值在上、下消化道出血鉴别诊断中的应用
李应华，王安秀，吴玉怀，刘建平，杨耀鹏
Application of Blood Urea Nitrogen /Creatinine Ratio in the Differentiation and Diagnosis of Upper and#br# Lower Gastrointestinal Bleeding
Li Yinghua, Wang Anxiu, Wu Yuhuai, Liu Jianping, Yang Yaopeng
大理大学学报
.
2020, (2): 80
-83
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DOI: 10. 3969 / j. issn. 2096-2266. 2020. 02. 018
