Muhadi M, Nasution SA, Putranto R, Harimurti K. The Ability of Detecting Heart Rate Variability with the Photoplethysmography to Predict Major Adverse Cardiac Event in Acute Coronary Syndrome. Acta Med Indones [Internet]. 2016Sep.19 [cited 2026May1];48(1):48. Available from: https://www.actamedindones.org/index.php/ijim/article/view/137