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FertilizationFertilization in VitroSpermatozoaSperm-Ovum InteractionsOvumOocytesEmbryo TransferZygoteZona PellucidaPregnancySperm Injections, IntracytoplasmicSperm MotilitySea UrchinsPregnancy RateAcrosomeCleavage Stage, OvumInfertility, FemaleAcrosome ReactionFertilizersSperm CapacitationCryopreservationEmbryonic DevelopmentBlastocystOvulation InductionDelayed DiagnosisInfertility, MalePrenatal DiagnosisInfertilityEgg ProteinsMicroinjectionsEarly DiagnosisEmbryo ImplantationSensitivity and SpecificityPregnancy OutcomeFertilityVitelline MembraneEmbryonic and Fetal DevelopmentParthenogenesisRetrospective StudiesSperm HeadSemen PreservationOocyte RetrievalOogenesisInsemination, ArtificialReproductive TechniquesFollicular FluidUrochordataStarfishTime FactorsEmbryo, MammalianDiagnosisFallopian TubesMeiosisOvuleOvarian FolliclePreimplantation DiagnosisChorionic GonadotropinReproductive Techniques, AssistedSemenOvulationMenotropinsOocyte DonationCumulus CellsAcrosinSperm CountEmbryo Culture TechniquesSperm TransportInseminationEchinodermataProspective StudiesOvarySuperovulationLive BirthReproductionIn Vitro Oocyte Maturation TechniquesTreatment OutcomeFallopian Tube DiseasesFollicle Stimulating HormoneOligospermiaPregnancy, MultipleDiagnostic ErrorsEpididymisMicromanipulationBlastomeresPollen TubePredictive Value of TestsBiopsyEmbryo, NonmammalianSperm TailContraception, ImmunologicOvarian Hyperstimulation SyndromeCattleEjaculationMetaphaseGerm Cells, PlantSpermatidsTomography, X-Ray ComputedTestisInfant, NewbornFertility Agents, Female