title: [Polycythemia vera: clinical and histopathological studies on its prognosis and the progressive course toward leukemia].
mesh_terms: D000368:Aged; D001853:Bone Marrow / Q000473:pathology; D005260:Female; D006801:Humans; D007938:Leukemia / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D011087:Polycythemia Vera / Q000473:pathology*; D011379:Prognosis