Thrombocythemia, EssentialPolycythemia VeraThrombocytosisJanus Kinase 2Myeloproliferative DisordersPrimary MyelofibrosisReceptors, ThrombopoietinPlatelet CountCarbazilquinoneThrombosisHydroxyureaMegakaryocytesThrombopoietinPipobromanLeukocytosisThrombopoiesisGranulocytesErythrocyte InclusionsMutation, MissenseAnemia, RefractoryMutationBlood PlateletsCoagulantsThrombophiliaSplenomegalyPolycythemiaLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeAmino Acid SubstitutionHemorrhageBone MarrowPlatelet Aggregation InhibitorsWorld Health OrganizationHemangioma, CavernousGPI-Linked ProteinsRetrospective StudiesThrombocytopeniaIsoantigensReceptors, CytokineQuinazolinesHomozygoteCalreticulinPoint Mutation