Erythropoiesisbeta-ThalassemiaErythroblastsHemoglobin EAnemia, Dyserythropoietic, CongenitalErythroid Precursor CellsErythroid CellsAnemiaHematopoiesis, ExtramedullaryErythrocyte AgingHepcidinsAnemia, SideroblasticIronIron OverloadErythrocyte CountThalassemiaErythropoietinalpha-ThalassemiaAnemia, HypochromicAntimicrobial Cationic PeptidesErythrocytesHemoglobins, AbnormalGlobinsBone MarrowHemolysisPhenylhydrazinesHemeReceptors, ErythropoietinCell DifferentiationPolycythemiaGATA1 Transcription FactorHemoglobinsHematocritReticulocyte CountIron IsotopesReticulocytesYolk SacAnemia, HemolyticColony-Forming Units AssayReceptors, TransferrinHematopoietic Stem CellsReticulocytosisAnemia, MacrocyticHematopoiesisbeta-GlobinsBone Marrow CellsBloodlettingFetal Hemoglobinalpha-GlobinsAnemia, Diamond-BlackfanSpleenIron RadioisotopesErythroid-Specific DNA-Binding FactorsGlycophorinLeukemia, Erythroblastic, AcutePolycythemia VeraHematinicsFerritinsAnemia, Iron-DeficiencyPhlebotomyGATA2 Transcription FactorStem Cell FactorLiverTransferrinK562 CellsCells, CulturedMice, Inbred C57BLThrombopoiesisRecombinant ProteinsGene Expression Regulation, DevelopmentalErythrocyte Indicesgamma-GlobinsBasic Helix-Loop-Helix Transcription FactorsMice, KnockoutGene Expression RegulationPregnanesFetus