Impact of Elective Percutaneous Transluminal Coronary Angioplasty (PTCA) on Heart Rate Variability in Patients with Coronary Artery Disease. ijop [Internet]. 2020 Jul. 22 [cited 2026 May 20];8(3):12-6. Available from: https://www.ijop.net/index.php/ijop/article/view/1322