Oocyte DonationPregnancyOocytesSex Determination ProcessesPregnancy OutcomeOogenesisPregnancy RateEmbryo TransferFertilization in VitroPregnancy ComplicationsCaenorhabditis elegansSpermatogenesisCaenorhabditis elegans ProteinsSpermatozoaEmbryo ImplantationTissue DonorsPregnancy Complications, CardiovascularTurner SyndromeInfertility, FemaleFamily Planning PolicyCryopreservationSperm Injections, IntracytoplasmicPregnancy, MultipleTissue and Organ ProcurementSperm CountSperm HeadPregnancy, AnimalOvulation InductionOocyte RetrievalInfertilityPrimary Ovarian InsufficiencyDirected Tissue DonationSperm CapacitationReproductive Techniques, AssistedAdoptionDisclosureAttitudePregnancy, EctopicAbortion, SpontaneousIslamEndometriumTwinsUterine HemorrhagePregnancy Trimester, FirstMaternal AgeFertilizationPublic OpinionSperm-Ovum InteractionsBlood DonorsPregnancy Trimester, ThirdBirth RateBrain DeathProgesteroneAltruismTriptorelin PamoateCesarean SectionOvarian Hyperstimulation SyndromeSperm MaturationPregnancy TrimestersPregnancy TestsLuteal PhaseGonadotropin-Releasing HormoneInfertility, MaleLiving DonorsPregnancy in DiabeticsInfant, NewbornPregnancy Trimester, SecondPregnancy, TubalSperm TransportMeiosisRetrospective StudiesDeathPregnancy Complications, NeoplasticAcrosomeZona PellucidaDonor SelectionXenopus laevisGift GivingPregnancy in AdolescenceFertilityEstradiolPresumed ConsentTissue and Organ HarvestingPregnancy Complications, InfectiousSemenPregnancy, High-RiskSperm BanksOvumSperm MidpieceFollicle Stimulating HormoneSemen PreservationPregnancy Proteins