Talal Wadee’a ا., and Abdulghani Taha Aldabbagh أ. “The Effect of Hypoxia Training Using an Altitude Mask on Certain Biochemical Variables in Young Football Players”. Al-Rafidain Journal For Sport Sciences, vol. 28, no. 88, Oct. 2025, pp. 42-55, doi:10.33899/rjss.v28i88.53582.