Khadem Ghaebi, N. .; Mahmoudiniya, M.; Najaf Najafi, M. .; Zohdi, E.; Attaran, M. Comparison of Letrozole With Gonadotropin-Releasing Hormone Agonist in Frozen Embryo Transfer After Recurrent Implantation Failure: A Randomized Control Trial. IJRM 2020, 18, 105-112.