Ahmed MNU, Begum S, Ali T. Effects of Pulmonary Rehabilitation on Exercise Tolerance in Patients with COPD. J Bangladesh Soc Physiol [Internet]. 2015 Mar. 30 [cited 2025 Sep. 6];9(2):65-71. Available from: https://www.banglajol.info/index.php/JBSP/article/view/22799