* Donor is superovulated to provide large numbers of mature [[[[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]].|follicles]]. | * Donor is superovulated to provide large numbers of mature [[[[The_Ovary_-_Follicles_-_Anatomy_%26_Physiology|follicle]].|follicles]]. |