@inbook{56952028,
author={Thomas J. Walsh, MD, MS and James F. Smith, MD, MS},
editor={McAninch, Jack W. and Lue, Tom F.},
title={Chapter 44. Male Infertility},
booktitle={Smith & Tanagho's General Urology, 18e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2013},
url={accessmedicine.mhmedical.com/content.aspx?aid=56952028}
}