@inbook{6878934, author={William E. DeTurk and Lawrence P. Cahalin}, editor={DeTurk, William E. and Cahalin, Lawrence P.}, title={Chapter 12. Evaluation of Patient Intolerance to Exercise}, booktitle={Cardiovascular and Pulmonary Physical Therapy: An Evidence-Based Approach, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2011}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=6878934} }