Dinakrisma AA, Wijaya IP, Nasution SA, Dewiasty E. The Role of Fragmented QRS (fQRS) As A Predictor of Major Adverse Cardiac Event within 30 days in Acute Coronary Syndrome Patients: A Retrospective Cohort Study. Acta Med Indones [Internet]. 2019May10 [cited 2026Jun.19];51(1):3. Available from: http://www.actamedindones.org/index.php/ijim/article/view/675