Sawicki, J., Konopka , M. and Modzelewski, M. (2016) “Narrow QRS complex tachycardia ? atrial fibrillation, atrial flutter or atrial tachycardia?”, Medycyna Faktow (J EBM), 9(1(30), pp. 80-82. Available at: https://www.journalsmededu.pl/index.php/jebm/article/view/2275 (Accessed: 13November2026).