@inbook{1148786615, author={Anne Mejia-Downs and Kathy Lee Bishop}, editor={DeTurk, William E. and Cahalin, Lawrence P.}, title={Physical Therapy Associated With Airway Clearance Dysfunction}, booktitle={Cardiovascular and Pulmonary Physical Therapy: An Evidence-Based Approach, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2017}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=1148786615} }