Polevoy G. ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR Desarrollo integral de las cualidades físicas de los futbolistas en el período preparatorio (Comprehensive development of physical qualities of football players in the preparatory period): ARTICLE RETRACTED DUE TO PLAGIARISM BY THE AUTHOR. Retos [Internet]. 2024 Aug. 3 [cited 2025 Dec. 17];57:172-8. Available from: http://207.180.252.49/index.php/retos/article/view/105912