Embryo ImplantationEmbryo, MammalianBlastocystBlastomeresEmbryo ResearchEmbryonic DevelopmentFertilization in VitroEmbryo, NonmammalianPregnancyEmbryonic and Fetal DevelopmentChick EmbryoPersonhoodEmbryo TransferBeginning of Human LifeCryopreservationEmbryo DispositionEmbryo Culture TechniquesPregnancy RateEmbryo Implantation, DelayedZygotePreimplantation DiagnosisGene Expression Regulation, DevelopmentalCulture TechniquesSperm Injections, IntracytoplasmicLifeEndometriumCochlear ImplantationValue of LifeEctogenesisMorulaMosaicismAnatomy, ArtisticTheologyTrophoblastsIncubatorsEmbryo LossSingle Embryo TransferEmbryologyLens Implantation, IntraocularTime FactorsOocytesFetal ResearchCloning, OrganismPrenatal InjuriesVitrificationReproductive TechniquesCleavage Stage, OvumFetal ViabilityGestational AgeUterusResearch Embryo CreationEthylene GlycolPregnancy OutcomeCryoprotective AgentsMoralsAneuploidyHuman CharacteristicsIn Situ HybridizationPacemaker, ArtificialZona PellucidaGamete Intrafallopian TransferFertilizationYolk SacStentsProsthesis DesignTreatment OutcomeMesodermGerm LayersFetusMorphogenesisCulture MediaCatholicismReproductive Techniques, AssistedThiepinsFallopian TubesTotipotent Stem CellsImmunohistochemistryEmbryonic Stem CellsNontherapeutic Human ExperimentationRNA, Messenger