Żuchowski M, Mańdziuk D, Niewinna P, Zaroda P, Dąda P, Pawlik P, et al. I’m sick? I don’t train!" – Relation between training during upper respiratory infection and myocarditis. J Educ Health Sport [Internet]. 2024 May 20 [cited 2025 Jul. 7];70:49033. Available from: https://apcz.umk.pl/JEHS/article/view/49033