Blood BanksCord Blood Stem Cell TransplantationFetal BloodSpinal CordBlood Grouping and CrossmatchingBlood DonorsBlood TransfusionCytapheresisBlood Buffy CoatSpinal Cord InjuriesBlood PreservationDonor SelectionUmbilical CordBlood Transfusion, AutologousInfant, NewbornHistocompatibility TestingAntigens, CD34Blood Loss, SurgicalHematopoietic Stem CellsIntensive Care UnitsPregnancyMaternal-Fetal ExchangeSpinal Cord DiseasesSpinal Cord CompressionHematopoietic Stem Cell TransplantationRetrospective StudiesSpermatic CordCells, CulturedColony-Forming Units AssaySpinal Cord IschemiaSpinal Cord NeoplasmsCell DifferentiationHospital UnitsMice, SCIDCell SeparationMice, Inbred NODImmunophenotypingMaternal ExposureCell Culture TechniquesFlow CytometryAntigens, CDGraft vs Host DiseaseAntigens, CD38Time Factors