ErythropoietinReceptors, ErythropoietinErythropoiesisAnemiaPolycythemiaRecombinant ProteinsErythroid Precursor CellsHematocritHemoglobinsErythroblastsReticulocyte CountHematinicsErythrocyte CountLeukemia, Erythroblastic, AcuteJanus Kinase 2Spleen Focus-Forming VirusesKidney Failure, ChronicAnemia, NeonatalInterleukin-3Renal DialysisHematopoietic Stem CellsColony-Forming Units AssaySTAT5 Transcription FactorAnoxiaInjections, SubcutaneousIronPolycythemia VeraBlood TransfusionErythrocytesDoping in SportsMilk ProteinsHypoxia-Inducible Factor 1Cells, CulturedCell LinePhenylhydrazinesBone MarrowBone Marrow CellsFriend murine leukemia virusReticulocytesStem Cell FactorSignal TransductionHematopoiesisPhlebotomyErythrocyte VolumeHypoxia-Inducible Factor 1, alpha SubunitCell DivisionAnemia, HypochromicRNA, MessengerErythroid CellsCell HypoxiaNeuroprotective AgentsFerritinsCell DifferentiationBloodlettingDose-Response Relationship, DrugTime FactorsCobaltGATA1 Transcription FactorErythrocyte TransfusionHypoxia-Inducible Factor-Proline DioxygenasesIron RadioisotopesHematopoietic Cell Growth FactorsKidneyMolecular Sequence DataReceptors, Transferrin