Fetal BloodSpinal CordLeukemiaSpinal Cord InjuriesLeukemia, Myeloid, AcuteUmbilical CordBlood BanksLeukemia, Lymphocytic, Chronic, B-CellInfant, NewbornAntigens, CD34Leukemia, LymphoidLeukemia, ExperimentalHematopoietic Stem CellsLeukemia, Myelogenous, Chronic, BCR-ABL PositivePregnancyLeukemia Virus, MurinePrecursor Cell Lymphoblastic Leukemia-LymphomaMaternal-Fetal ExchangeHematopoietic Stem Cell TransplantationSpinal Cord DiseasesCell DifferentiationSpinal Cord CompressionCells, CulturedLeukemia, T-CellImmunophenotypingLeukemia, Monocytic, AcuteFlow CytometryMice, SCIDMoloney murine leukemia virusSpermatic CordLeukemia, Hairy CellAntigens, CDColony-Forming Units AssayLeukemia L1210Spinal Cord NeoplasmsLeukemia, B-CellSpinal Cord IschemiaMice, Inbred NODCord Blood Stem Cell TransplantationGraft vs Host DiseaseLeukemia Virus, BovineLeukemia Virus, FelineHistocompatibility TestingCell SeparationAntigens, CD38Maternal ExposureCell Culture TechniquesBlood PreservationGene Expression Regulation, LeukemicTransplantation, HomologousHematopoiesisLeukemia, Radiation-InducedTime FactorsHematologic NeoplasmsMyeloid-Lymphoid Leukemia ProteinBone MarrowTransplantation ConditioningADP-ribosyl CyclaseBlood CellsCell LineageStem CellsLeukocytes, MononuclearAcute DiseaseLeukemia P388T-LymphocytesLeukemia, Biphenotypic, AcuteCord FactorsPlacentaBlood Cell CountStem Cell FactorK562 CellsBone Marrow CellsNuchal CordParaplegiaFriend murine leukemia virusGraft SurvivalGestational AgeTreatment OutcomeRemission InductionGraft vs Leukemia EffectCell DivisionHL-60 CellsAntigens, CD45B-LymphocytesCell LineUnrelated DonorsLeukemia-Lymphoma, Adult T-CellLymphocytesCytarabineTransplantation ChimeraCell ProliferationRetroviridaeVocal CordsFetusTissue DonorsLeukemia, Megakaryoblastic, AcuteNAD+ NucleosidaseAKR murine leukemia virusAntineoplastic AgentsAntigens, CD7