RT Journal Article SR Electronic T1 Dyspnea and Hyperinflation in Chronic Obstructive Pulmonary Disease: Impact on Physical Activity JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP S3 OP S10 DO 10.3949/ccjm.85.s1.02 VO 85 IS 2 suppl 1 A1 Marchetti, Nathaniel A1 Kaplan, Alan YR 2018 UL http://www.ccjm.org/content/85/2_suppl_1/S3.abstract AB