Divkan, Behzad, Teymouri, Abazar ,  Mirdar Harijani, Shadmehr, Zeinali , Elhamalsadat ,  Mohammadi, Alireza ,  Aghajani, Mobina . Effect of Whey protein supplementation on GH-1 and IGF-1 in taekwondo Men athletes.  Journal of Sports Physiology and Athletic Conditioning. 2021;1(2):43-54. doi:10.61186/jspac.32004.1.2.43