The acute effects of plyometric and sled towing stimuli with and without caffeine ingestion on vertical jump performance in professional soccer players - Guerra Jr, M. A.; Caldas, L. C.; De Souza, H. L.; Vitzel, K. F.; Cholewa, J. M.; Duncan, M. J.; Guimarães-Ferreira, L. (Journal of the International Society of Sports Nutrition, 2018)