Szafran , B., Kukla , P., Baranowski , R., Sacha , J. and Kuch , M. (2014) “ Is there a limit of physiological bradycardia in athlete?”, Cardiology in Practice, 8(4), pp. 26-29. Available at: https://journalsmededu.pl/index.php/kwp/article/view/1482 (Accessed: 3July2024).