Kalisiak, M., Czechowska, M., Kasznicki, M., Beśka, W., Micek, N., Łącki, J., … Jackowiak, K. (2026). The Influence of CYP1A2 Polymorphism on the Ergogenic Effects of Caffeine Across Different Athletic Modalities: A Systematic Review. Quality in Sport, 64, 73735. https://doi.org/10.12775/QS.2026.64.73735