@inbook{1181050836, author={Ken Zafren and R. Jason Thurman and Ian D. Jones}, editor={Knoop, Kevin J. and Stack, Lawrence B. and Storrow, Alan B. and Thurman, R. Jason}, title={Pernio}, booktitle={The Atlas of Emergency Medicine, 5e}, publisher={McGraw-Hill}, address={New York, NY}, year={2021}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1181050836} }