Abdull, Thikra N. “Step-up Protocol Gonadotrophin Versus Laparoscopic Ovarian Drilling in Clomiphene Citrate Resistant PCOS Infertile Women in Two Iraqi Hospitals”. AL-Kindy College Medical Journal, vol. 15, no. 1, Sept. 2019, pp. 103-9, https://doi.org/10.47723/kcmj.v15i1.89.