GNRH1 and Infertility: All the subjects were Caucasian, with smokers for no implantation and successful implantation constituting 30.62% and 28.17% respectively, male factors infertility constituting 32.65% and 61.97%, respectively, and those who underwent a long GnRH agonist protocol constituting 14.29% and 4.23% for each subgroup.