“PREVALENCE OF PULMONARY HYPERTENSION IN CHRONIC OBSTRUCTIVE PULMONARY DISEASE PATIENTS AND ITS CORRELATION WITH THE SEVERITY OF DISEASE”, RMSR, vol. 3, no. 1, pp. 625–634, Jan. 2025, Accessed: Aug. 06, 2025. [Online]. Available: https://medscireview.net/index.php/Journal/article/view/422