a total of 59 symptomatic patients with myeloproliferative disorders ( polycythaemia vera 24 pats. , essential thrombocythaemia 25 pats. , myelofibrosis 10 pats . ) and elevated platelet counts were studied during 1653 months of continuous treatment with hydroxyurea .
C0027022
myeloproliferative disorders
C0001815
myelofibrosis