Vidhiyasagaran J et al. 2025. ECHOCARDIOGRAPHIC FINDINGS AND ITS CORRELATION WITH THE SEVERITY OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE IN A TERTIARY CARE HOSPITAL AT NORTH KERALA: A CROSS-SECTIONAL STUDY. Journal of Population Therapeutics and Clinical Pharmacology. 32, 1 (Feb. 2025), 1059–1067. DOI:https://doi.org/10.53555/m71avz12.