ErythropoiesisBone MarrowBone Marrow CellsBone Marrow TransplantationBone and BonesErythroblastsErythroid Precursor CellsErythropoietinBone Marrow DiseasesBone RemodelingHematopoietic Stem CellsBone Marrow ExaminationBone Marrow NeoplasmsBone DensityErythroid CellsHematopoiesisColony-Forming Units AssayAnemiaBone ResorptionCell DifferentiationBone Marrow PurgingMice, Inbred C57BLHematopoiesis, ExtramedullaryPhenylhydrazines