@inbook{3026959,
author={Daniel E. Cohen, MD and Kenneth Mayer, MD},
editor={Klausner, Jeffrey D. and Hook, Edward W.},
title={Chapter 4. Genital Ulcer Disease},
booktitle={CURRENT Diagnosis & Treatment of Sexually Transmitted Diseases},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2007},
url={accessmedicine.mhmedical.com/content.aspx?aid=3026959}
}