The concentration of attention and its relationship to the accuracy of the transmission of volleyball players from the sitting position, a descriptive research using the method of correlation studies. cbej [Internet]. 2022 Dec. 17 [cited 2024 Jul. 18];17(67):499-513. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/7908