Tasnim SF, Begum S, Sultana S, Islam SR. Effect of physical exercise on non-linear parameters of heart rate variability in Chronic Obstructive Pulmonary Disease. J Bangladesh Soc Physiol [Internet]. 2022 Dec. 27 [cited 2024 Nov. 24];17(1):6-13. Available from: https://banglajol.info/index.php/JBSP/article/view/63211