The impact of a training curriculum in a deficiency style oxygen using a mask (Hypoxic) to develop some abilities Special physique of young handball players. cbej [Internet]. 2023 Feb. 6 [cited 2024 Jul. 18];21(88):625-57. Available from: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9942