@inbook{2699233, author={Leonard G. Gomella and Steven A. Haist}, title={Chapter 3. Differential Diagnosis: Symptoms, Signs, and Conditions}, booktitle={Clinician's Pocket Reference: The Scut Monkey, 11e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2007}, url={accessmedicine.mhmedical.com/content.aspx?aid=2699233} }