@inbook{1100436240, author={Wolfgang Stehr and James M. Betts}, editor={Ziegler, Moritz M. and Azizkhan, Richard G. and Allmen, Daniel von and Weber, Thomas R.}, title={Cryptorchidism}, booktitle={Operative Pediatric Surgery, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2014}, url={accesssurgery.mhmedical.com/content.aspx?aid=1100436240} }