@inbook{1139369035, author={Richard F. LeBlond and Donald D. Brown and Manish Suneja and Joseph F. Szot}, title={The Abdomen, Perineum, Anus, and Rectosigmoid}, booktitle={DeGowin’s Diagnostic Examination, 10e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicine.mhmedical.com/content.aspx?aid=1139369035} }