@inbook{1202606707, author={Shobha W. Stack}, editor={Stern, Scott D.C. and Cifu, Adam S. and Altkorn, Diane}, title={Enfermedad ulcerosa péptica [PUD, peptic ulcer disease]}, booktitle={Diagnóstico basado en los síntomas: Una guía basada en evidencias, 4e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2021}, url={accessmedicina.mhmedical.com/content.aspx?aid=1202606707} }