Conventional Ovarian Stimulation vs. Single Injection Stimulation of Corifollitropin Alfa in Oocyte Donor

"The used treatment will be identical in both arms. The difference between the groups will be the moment of beginning of the stimulation as well as the later administration of more FSH activity.~The control grup will receive the treatment on the 5th day after the cessation of hormonal contraceptive use. The used treatment will be identical in both arms. The difference between the groups will be the moment of beginning of the stimulation as well as the later administration of more FSH activity.~The intervention grup will receive the treatment on the 7th day after the cessation of hormonal contraceptive use."