Matter, T. F., and F. A. Sharif. “HLA-G and HLA-E Gene Polymorphisms in Idiopathic Recurrent Spontaneous Abortion Women in Gaza Strip-Palestine”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 2, no. 3, Dec. 2016, pp. 277-83, https://www.ijrcog.org/index.php/ijrcog/article/view/93.