Uddin SA, Rahman M, Khan M, Rahman MM, Islam M, Ghose S, Huda M, Begum S, Basak P, Rahman MT. A Study of Echocardiographic Changes Among the Patients of COPD. TAJ: J of Teachers Assoc [Internet]. 2018 Dec. 2 [cited 2024 Dec. 22];28(1):16-20. Available from: https://banglajol.info/index.php/TAJ/article/view/39062