Relationship between Myocardial Performance Index (Tei Index) and angiographic severity of coronary artery disease in patients with Acute ST Elevation Myocardial Infarction. Nepalese Heart J. [Internet]. 2024 Nov. 5 [cited 2026 Jul. 16];21(2):5-11. Available from: https://nepjol.info/index.php/NHJ/article/view/70862