PancytopeniaBone MarrowBone Marrow CellsBone Marrow TransplantationBiopsyBone and BonesHematopoietic Stem CellsBone Marrow DiseasesBone Marrow ExaminationAnemia, AplasticBone RemodelingBone Marrow NeoplasmsBiopsy, NeedleLymphohistiocytosis, HemophagocyticBone DensityHypersplenismHematopoiesisBone ResorptionHistiocytosis, Non-Langerhans-CellTransplantation, HomologousBone Marrow PurgingMyelodysplastic SyndromesAnemia, MegaloblasticColony-Forming Units AssayBone NeoplasmsMice, Inbred C57BLFatal OutcomeBlood Cell CountBone DevelopmentCell DifferentiationBone DiseasesLeukemiaGraft vs Host DiseaseAnemia, MacrocyticPrimary MyelofibrosisCells, CulturedThrombocytopeniaBone RegenerationHemoglobinuria, ParoxysmalSpleenSplenomegalyHematopoietic Stem Cell TransplantationWhole-Body IrradiationTransplantation, AutologousLymphomatoid GranulomatosisStromal CellsRadiation ChimeraFanconi AnemiaFlow CytometryTuberculosis, MiliaryLeukemia, Myeloid, AcuteTreatment OutcomeOsteogenesisHematologic DiseasesGranulocyte Colony-Stimulating FactorBone MatrixTime FactorsThrombopoietinBone TransplantationAntigens, CD34Leukocyte CountGranulocytesLeishmaniasis, VisceralTachycardia, SinusImmunosuppressive AgentsLeukopeniaOsteoblasts