Wijaya, Ika Prasetya, Eka Ginanjar, Andhika Rachman, and M Hafiz Aini. 2022. “The Relationship Between Fragmented QRS Complexes (fQRS) and the Severity of Coronary Artery Lesion in Coronary Artery Disease: A Cross-Sectional Study”. Acta Medica Indonesiana 54 (3):349. http://www.actamedindones.org/index.php/ijim/article/view/1920.