PIEKARSKA, Ewa, PAWLICKI, Mateusz, ŁOPUSZYŃSKA, Anna, KOZIOŁ, Magdalena, KRASA, Aleksandra and PIECEWICZ-SZCZĘSNA, Halina. Caffeine in Pain Perception and Management. Journal of Education, Health and Sport. Online. 26 August 2021. Vol. 11, no. 8, pp. 328-333. [Accessed 30 June 2024]. DOI 10.12775/JEHS.2021.11.08.036.