Callejas Rosales R, Castillo-Rodriguez A, Sánchez-Abselam O, González-Fernández FT. Exploring differences in body composition and physical fitness between U11 and U12 soccer players: Implications for health promotion and athletic performance. sportk [Internet]. 2026 Mar. 21 [cited 2026 Mar. 22];15:10. Available from: https://revistas.um.es/sportk/article/view/707751