@inbook{1182906112, author={Yi-Chun Liu and John H. Greinwald Jr.}, editor={Kline, Mark W.}, title={The Ear}, booktitle={Rudolph's Pediatrics, 23e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1182906112} }