Polycythemia VeraPolycythemiaEye ManifestationsBloodlettingExchange Transfusion, Whole BloodHematocritThrombocythemia, EssentialLymphoceleJanus Kinase 2HemoglobinometryBlood ViscosityAloePrimary MyelofibrosisMyeloproliferative DisordersPlasma VolumeCarboxyhemoglobinDiphosphoglyceric AcidsThrombocytosisPipobroman