Bone MarrowBone Marrow CellsBone Marrow TransplantationBone and BonesFetusHematopoietic Stem CellsFetal Tissue TransplantationCell DifferentiationBone RemodelingHematopoiesisComplicityFetal ResearchBone Marrow DiseasesColony-Forming Units AssayBone Marrow ExaminationAborted FetusMice, Inbred C57BLBone Marrow NeoplasmsFetal BloodResearchBone DensityYolk SacLymphopoiesisMesenchymal Stromal CellsCell LineageAntigens, CD34Cells, CulturedPregnancyLiverRadiation ChimeraFlow CytometryStromal CellsDirected Tissue DonationBone ResorptionBone DevelopmentB-LymphocytesStem CellsSpleenMaternal-Fetal ExchangeBone Marrow PurgingCell SeparationPlacentaAntigens, CDHematopoietic Stem Cell TransplantationLifeMesenchymal Stem Cell TransplantationGestational AgeImmunophenotypingBone NeoplasmsThymus GlandPersonhoodPrecursor Cells, B-LymphoidMesonephrosOsteogenesisGraft SurvivalTime FactorsADP-ribosyl CyclaseTransplantation, HomologousProto-Oncogene Proteins c-kitStem Cell TransplantationBeginning of Human LifeMice, TransgenicAdult Stem CellsBone RegenerationAbortion, VeterinaryBone DiseasesB-Lymphocyte SubsetsMice, Inbred BALB CInterleukin-7Erythroid Precursor CellsCell DivisionErythropoiesisStem Cell FactorReverse Transcriptase Polymerase Chain ReactionOsteoblastsRNA, MessengerCell Culture TechniquesAntigens, DifferentiationMice, KnockoutAntigens, CD45Antigens, CD38Mice, SCIDT-LymphocytesPhenotypeBase SequenceTransplantation, AutologousWhole-Body IrradiationNAD+ NucleosidasePolymerase Chain ReactionMice, Inbred StrainsCell ProliferationGraft vs Host DiseaseAnemia, AplasticMolecular Sequence DataResearch Support as TopicGene ExpressionGene Rearrangement, B-Lymphocyte, Heavy ChainAntigens, LyResearch DesignLeukemia