Polycythemia VeraPolycythemiaEye ManifestationsBloodlettingThrombocythemia, EssentialJanus Kinase 2Primary MyelofibrosisMyeloproliferative DisordersAloeHematocritExchange Transfusion, Whole BloodPipobromanThrombocytosisErythroid Precursor CellsLymphoceleHemoglobinometryBlood ViscosityErythropoietinPhlebotomyReceptors, ThrombopoietinPlasma VolumeCarboxyhemoglobinDiphosphoglyceric AcidsErythropoiesis