Suárez Rodríguez M, Soler Prieto Y, Cañizares M. Techniques of psychological intervention to elevate the concentration of the attention in Cuban boxers. EFDeportes [Internet]. 2018Mar.29 [cited 2024May18];22(238):2-13. Available from: https://efdeportes.com/efdeportes/index.php/EFDeportes/article/view/307