@inbook{1122359293, author={Augusto A. Litonjua and Andrea J. Apter and Scott T. Weiss}, editor={Grippi, Michael A. and Elias, Jack A. and Fishman, Jay A. and Kotloff, Robert M. and Pack, Allan I. and Senior, Robert M. and Siegel, Mark D.}, title={Asthma: Epidemiology}, booktitle={Fishman's Pulmonary Diseases and Disorders, 5e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicine.mhmedical.com/content.aspx?aid=1122359293} }