FertilizationFertilization in VitroSpermatozoaSperm-Ovum InteractionsOocytesOvumWomenWomen's HealthEmbryo TransferPregnancyZygoteZona PellucidaSperm Injections, IntracytoplasmicSperm MotilityPregnancy RateInfertility, FemaleSea UrchinsAcrosomeCleavage Stage, OvumOvulation InductionPregnancy OutcomeAcrosome ReactionFertilizersSperm CapacitationCryopreservationEmbryonic DevelopmentInfertilityBlastocystInfertility, MaleFertilityEgg ProteinsEmbryo ImplantationMicroinjectionsPregnant WomenBattered WomenEmbryonic and Fetal DevelopmentVitelline MembraneParthenogenesisSperm HeadReproductive TechniquesInsemination, ArtificialSemen PreservationOogenesisOocyte RetrievalFollicular FluidUrochordataStarfishEmbryo, MammalianReproductive Techniques, AssistedOvarian FollicleWomen's Health ServicesTime FactorsFallopian TubesOvulationChorionic GonadotropinMeiosisOocyte DonationWomen's RightsMenotropinsOvuleFollicle Stimulating HormoneSemenLive BirthCumulus CellsAbortion, SpontaneousEmbryo Culture TechniquesAcrosinSperm CountPostmenopauseReproductionCohort StudiesFallopian Tube DiseasesInseminationWomen, WorkingSperm TransportSuperovulationSex FactorsEchinodermataPregnancy, MultipleAge FactorsIn Vitro Oocyte Maturation TechniquesOvaryQuestionnairesEstradiolFertility Agents, FemaleRetrospective StudiesEpididymisOligospermiaOvarian Hyperstimulation SyndromeCross-Sectional StudiesMicromanipulationPollen TubePhysicians, WomenRisk FactorsMaternal AgeEmbryo, NonmammalianPolycystic Ovary SyndromeContraception, ImmunologicSperm TailBlastomeres