Stadnik L, Kozłowska A, Przybysz K, Woroniecka N, Dzwonkowska A, Zienkiewicz N, et al. Cortisol as a Blood Biomarker for Monitoring Endurance Training - A Narrative Review. Qual Sport [Internet]. 2026 Aug. 3 [cited 2026 Aug. 9];65:74045. Available from: https://apcz.umk.pl/QS/article/view/74045