Biecker, E. (2015). Diagnosis and therapy of non-variceal upper gastrointestinal bleeding. World J Gastrointest Pharmacol Ther.
Citação norma ChicagoBiecker, Erwin. "Diagnosis and Therapy of Non-variceal Upper Gastrointestinal Bleeding." World J Gastrointest Pharmacol Ther 2015.
MLA CitationBiecker, Erwin. "Diagnosis and Therapy of Non-variceal Upper Gastrointestinal Bleeding." World J Gastrointest Pharmacol Ther 2015.
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