@inbook{1114938627, author={Abel Archundia García and Alfredo Vicencio Tovar (qepd)}, editor={Archundia García, Abel}, title={Hemorragia gastrointestinal}, booktitle={Cirugía 2}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicina.mhmedical.com/content.aspx?aid=1114938627} }