@inbook{1182933010, author={Scott B. Rosenfeld and David A. Podeszwa}, editor={Kline, Mark W.}, title={Developmental Conditions of the Hip}, booktitle={Rudolph's Pediatrics, 23e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1182933010} }