Piekarska, E., Pawlicki, M., Łopuszyńska, A., Kozioł, M., Krasa, A., & Piecewicz-Szczęsna, H. (2021). Caffeine in Pain Perception and Management. Journal of Education, Health and Sport, 11(8), 328–333. https://doi.org/10.12775/JEHS.2021.11.08.036