@inbook{1155975589, author={Patricia A. Kritek and Bruce D. Levy}, editor={Jameson, J. Larry and Fauci, Anthony S. and Kasper, Dennis L. and Hauser, Stephen L. and Longo, Dan L. and Loscalzo, Joseph}, title={Approach to the Patient with Disease of the Respiratory System}, booktitle={Harrison's Principles of Internal Medicine, 20e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1155975589} }