Bone MarrowBone Marrow CellsBone Marrow TransplantationFetal BloodBone and BonesSpinal CordSpinal Cord InjuriesHematopoietic Stem CellsBone RemodelingBone Marrow DiseasesBone Marrow ExaminationBone Marrow NeoplasmsUmbilical CordBone DensityBone ResorptionAntigens, CD34HematopoiesisCell DifferentiationBone Marrow PurgingColony-Forming Units AssayTransplantation, HomologousCells, CulturedBone NeoplasmsMice, Inbred C57BLBone DevelopmentGraft vs Host DiseaseFlow CytometryBone DiseasesBlood BanksInfant, NewbornHematopoietic Stem Cell TransplantationStromal CellsWhole-Body IrradiationTransplantation, AutologousLeukemiaAnemia, AplasticCell SeparationBone RegenerationSpinal Cord DiseasesRadiation ChimeraTime FactorsStem CellsImmunophenotypingOsteogenesisSpinal Cord CompressionTransplantation ChimeraCell LineagePregnancyGranulocytesAntigens, CDBone MatrixCord Blood Stem Cell TransplantationBone TransplantationGraft SurvivalSpleenBlood CellsSpermatic CordHistocompatibility TestingMegakaryocytesT-LymphocytesBlood Cell CountMesenchymal Stromal CellsSpinal Cord NeoplasmsTransplantation ConditioningLeukemia, Myeloid, AcuteOsteoblastsMice, SCIDOsteoclastsMice, KnockoutCell CountMultiple MyelomaCell DivisionPancytopeniaTissue DonorsSpinal Cord IschemiaCell Culture TechniquesMyelodysplastic SyndromesMice, Inbred BALB CBone SubstitutesGranulocyte Colony-Stimulating FactorMice, TransgenicBone Diseases, MetabolicDisease Models, AnimalStem Cell FactorHematologic NeoplasmsLeukocyte CountFemurThymus GlandCell ProliferationPrecursor Cell Lymphoblastic Leukemia-LymphomaMaternal-Fetal ExchangeLeukemia, MyeloidHistocompatibilityErythropoiesisTreatment OutcomeAntigens, CD45Mice, Inbred NODFractures, BoneCoculture TechniquesGranulocyte-Macrophage Colony-Stimulating Factor