Stem CellsFetusHematopoietic Stem CellsStem Cell TransplantationEmbryonic Stem CellsAdult Stem CellsPluripotent Stem CellsHematopoietic Stem Cell TransplantationStem Cell NicheNeural Stem CellsInduced Pluripotent Stem CellsCell DifferentiationMultipotent Stem CellsMesenchymal Stem Cell TransplantationStem Cell FactorMesenchymal Stromal CellsCampylobacter fetusCell LineageStem Cell ResearchPregnancyPlant StemsFetal Stem CellsTritrichomonas foetusCells, CulturedCell ProliferationHematopoietic Stem Cell MobilizationNeoplastic Stem CellsFetal DiseasesGestational AgeBone Marrow CellsRegenerationUltrasonography, PrenatalOctamer Transcription Factor-3Cell Culture TechniquesCell SeparationRegenerative MedicineHematopoiesisTransplantation, AutologousPeripheral Blood Stem Cell TransplantationAntigens, CD34Totipotent Stem CellsEmbryo, MammalianFlow CytometryTransplantation, HomologousMice, Inbred C57BLFetal BloodSOXB1 Transcription FactorsGene Expression Regulation, DevelopmentalSignal TransductionColony-Forming Units AssaySpermatogoniaMice, SCIDCell- and Tissue-Based TherapyTissue EngineeringMaternal-Fetal ExchangeProto-Oncogene Proteins c-kitFetal HeartCell LineCord Blood Stem Cell TransplantationReverse Transcriptase Polymerase Chain ReactionNestinPhenotypeGene Expression ProfilingBiological MarkersGerm CellsHomeodomain ProteinsPlacentaImmunohistochemistryBrain StemHair FollicleAmniotic FluidCell SurvivalCoculture TechniquesMice, TransgenicModels, BiologicalEmbryo ResearchCell DivisionNeuronsTime FactorsTeratomaPrenatal DiagnosisBone Marrow TransplantationCell DedifferentiationGene Expression RegulationTranscription FactorsBone MarrowGreen Fluorescent ProteinsAntigens, CDUmbilical CordTransplantation ConditioningEmbryoid BodiesNuclear ReprogrammingEmbryonic and Fetal DevelopmentFetal Growth RetardationCell TransplantationSheepCell MovementSpheroids, CellularNeurogenesisChondrogenesis