Thrombocythemia, EssentialPolycythemia VeraThrombocytosisJanus Kinase 2Myeloproliferative DisordersPrimary MyelofibrosisReceptors, ThrombopoietinPlatelet CountThrombopoietinThrombosisCarbazilquinoneMegakaryocytesHydroxyureaPipobromanLeukocytosisGranulocytesMutation, MissenseThrombopoiesisErythrocyte InclusionsSplenomegalyPolycythemiaBlood PlateletsAnemia, RefractoryMutationCoagulantsThrombophiliaLeukemia, Myeloid, Chronic, Atypical, BCR-ABL NegativeAmino Acid SubstitutionPregnancy Complications, HematologicBone MarrowPlatelet Aggregation InhibitorsHemorrhageWorld Health OrganizationGPI-Linked ProteinsThrombocytopeniaHemangioma, CavernousQuinazolinesReceptors, CytokineIsoantigens