RT Journal Article SR Electronic T1 COPD and Physical Activity: A Call to Action for Respiratory Therapists and Patients JF Respiratory Care FD American Association for Respiratory Care SP 121 OP 122 DO 10.4187/respcare.05992 VO 63 IS 1 A1 David M Burnett YR 2018 UL http://rc.rcjournal.com/content/63/1/121.abstract AB