Ashti Mohammad Amin Said. “The Association Study Between Tumor Necrosis Factor- Receptor 1 36 A/G (TNFR1 36 A/G) Gene Polymorphism and Azoospermic Infertile Men in Erbil City”. Zanco Journal of Pure and Applied Sciences, vol. 33, no. 1, Feb. 2021, pp. 27-34, doi:10.21271/ZJPAS.33.1.4.