Internal hemorrhoids. (Used, with permission, from John Cello, MD.)

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Internal hemorrhoids. (Used, with permission, from John Cello, MD.) Source: Gastrointestinal Disorders, Current Medical Diagnosis & Treatment 2017 Citation: Papadakis MA, McPhee SJ, Rabow MW. Current Medical Diagnosis & Treatment 2017; 2016 Available at: https://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/1843/cmdt17_ch15_ef021.png&sec=135710040&BookID=1843&ChapterSecID=135709704&imagename= Accessed: December 22, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved