@inbook{1159799941,
author={Katherine Holmes and Michael Balkin and Hao Wang},
editor={Reichman, Eric F.},
title={External Hemorrhoid Management},
booktitle={Reichman's Emergency Medicine Procedures, 3e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2018},
url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1159799941}
}