BuserelinFertility Agents, FemaleGonadotropin-Releasing HormoneMenotropinsOvulation InductionReceptors, LHRHCloprostenolFertilization in VitroNafarelinLuteinizing HormoneFollicle Stimulating HormoneEmbryo TransferClomipheneProgesteroneOvarian FollicleChorionic GonadotropinHormone AntagonistsPregnancy RateEstrus SynchronizationLuteal PhasePostpartum PeriodOvaryEstradiolCorpus LuteumOvulation