Kumar DSS, Savya D . VS. Pulmonary hypertension in chronic lung diseases: a hospital-based cross-sectional observational study using echocardiographic assessment. SJHR-Africa [Internet]. 2026Mar.30 [cited 2026May20];7(3):9. Available from: https://www.sjhresearchafrica.org/index.php/public-html/article/view/2514