Dose-Response Relationship, DrugTime FactorsCord Blood Stem Cell TransplantationAntigens, CD34Histocompatibility TestingGraft SurvivalGraft vs Host DiseaseBlood Cell CountHematologic NeoplasmsTransplantation, HomologousHematopoietic Stem Cell TransplantationDose-Response Relationship, RadiationTransplantation, IsogeneicTransplantation ConditioningFetal BloodOxytropisBone Marrow TransplantationTreatment OutcomeRadiation DosageHematopoietic Stem CellsCell CountTransplantation, AutologousPeripheral Blood Stem Cell TransplantationRadiometryHematopoietic Stem Cell Mobilization