MegakaryocytesThrombopoiesisThrombopoietinBlood PlateletsMegakaryocyte Progenitor CellsPloidiesReceptors, ThrombopoietinThrombocytopeniaBone Marrow CellsThrombocytosisHematopoiesisPlatelet Factor 4Platelet CountBone MarrowHematopoietic Stem CellsNF-E2 Transcription Factor, p45 SubunitPlatelet Membrane Glycoprotein IIbNF-E2 Transcription FactorCell DifferentiationGATA1 Transcription FactorPolyploidyErythroid-Specific DNA-Binding FactorsColony-Forming Units AssayCells, CulturedPlatelet Membrane GlycoproteinsLeukemia, Megakaryoblastic, AcuteCytoplasmic GranulesThrombocythemia, EssentialAntigens, CD34Primary MyelofibrosisBlood Platelet DisordersInterleukin-3Platelet Glycoprotein GPIb-IX ComplexCell SeparationPlatelet Glycoprotein GPIIb-IIIa ComplexReceptors, CytokineStem Cell FactorChromomycin A3Integrin beta3Flow CytometryGuinea PigsMicroscopy, Electronvon Willebrand FactorCell DivisionErythropoiesisColony CollapseMyeloproliferative DisordersFibrinogenDynamin IIIGranulocytesPlatelet ActivationColony-Stimulating FactorsCulture MediaCell LineColony Count, MicrobialInterleukin-11Blood Cell CountAcetylcholinesteraseFetal BloodMice, Inbred C57BLMegakaryocyte-Erythroid Progenitor CellsCell CountRNA, MessengerRecombinant Proteinsbeta-ThromboglobulinCell LineageMolecular Sequence DataBase SequenceHematopoiesis, ExtramedullaryAntsCyclin D3ErythropoietinAncrodPurpura, Thrombocytopenic, Idiopathic