ArticleSichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition2022

[Value of Blood Urea Nitrogen-to-Creatinine Ratio for Differentiating the Site of Gastrointestinal Bleeding and Assessing the Prognosis of Patients with Acute Nonvariceal Upper Gastrointestinal Bleeding].

Jia-Xing Feng et al.PubMed ↗Full text ↗Publisher ↗

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