Hematopoietic Stem Cell TransplantationHematopoietic Stem CellsStem CellsTransplantation, HomologousStem Cell TransplantationGraft vs Host DiseaseTransplantation, AutologousHematologic NeoplasmsTransplantation ConditioningTransplantationStem Cell NicheHematopoiesisHistocompatibility TestingImmunocompromised HostCell DifferentiationTissue DonorsAntigens, CD34Peripheral Blood Stem Cell TransplantationAdult Stem CellsBone Marrow TransplantationHepatic Veno-Occlusive DiseaseCell LineageTreatment OutcomeMice, Inbred C57BLBone Marrow CellsLeukemiaTransplantation ChimeraPancytopeniaImmunosuppressive AgentsColony-Forming Units AssayFlow CytometryFetal BloodBone MarrowHematopoietic Stem Cell MobilizationAnemia, AplasticEmbryonic Stem CellsCells, CulturedCell ProliferationRetrospective StudiesPluripotent Stem CellsHLA AntigensAntifungal AgentsCytomegalovirus InfectionsGraft SurvivalStromal CellsMultipotent Stem CellsNeural Stem CellsInduced Pluripotent Stem CellsMesenchymal Stem Cell TransplantationStem Cell FactorOpportunistic InfectionsCell CountMycosesHistocompatibilityFollow-Up StudiesMesenchymal Stromal CellsAspergillosisPlant StemsTime FactorsSignal TransductionKidney TransplantationWhole-Body IrradiationRoseolovirus InfectionsNeoplastic Stem CellsCord Blood Stem Cell TransplantationTransplantsCytomegalovirusGene Expression RegulationRecurrenceHematologic DiseasesBusulfanFetal Stem CellsCell SeparationMultiple MyelomaChimerismGraft RejectionGranulocyte Colony-Stimulating FactorCell SurvivalAntiviral AgentsStem Cell ResearchCombined Modality TherapyCell DivisionFatal OutcomeSurvival RateLeukemia, Myelogenous, Chronic, BCR-ABL PositiveMice, SCIDGanciclovirHerpesvirus 6, HumanLeukemia, Myeloid, AcuteSurvival AnalysisMyeloablative AgonistsSalvage TherapyBK VirusAcute DiseaseLymphoproliferative DisordersGraft vs Leukemia EffectPolyomavirus InfectionsRisk FactorsCell TransplantationPrecursor Cell Lymphoblastic Leukemia-Lymphoma