Effects of chronological age, relative age, and maturation status on accumulated training load and perceived exertion in young sub-elite football players - Teixeira, J. E.; Alves, A. R.; Ferraz, R.; Forte, P.; Leal, M.; Ribeiro, J.; Silva, A. J.; Barbosa, T. M.; Monteiro, A. M. (Frontiers in Physiology, 2022)