Cord Blood Stem Cell TransplantationFetal BloodTransplantation ChimeraHematologic NeoplasmsHematopoietic Stem Cell TransplantationGraft vs Host DiseaseTissue DonorsHistocompatibility TestingTransplantation ConditioningTransplantation, HomologousTreatment OutcomeSpinal CordSpinal Cord InjuriesKidney TransplantationTransplantsUmbilical CordGraft SurvivalBlood BanksGraft RejectionInfant, NewbornImmunosuppressive AgentsAntigens, CD34Heart TransplantationHematopoietic Stem CellsTransplantationLung TransplantationPregnancyTime FactorsBone Marrow TransplantationTissue and Organ ProcurementMaternal-Fetal ExchangeTacrolimusCyclosporineFetal Tissue TransplantationRetrospective StudiesSpinal Cord DiseasesLiving DonorsPostoperative ComplicationsImmunosuppression