title: [Myelofibrosis in polycythemia vera following 15 years of phlebotomy].
mesh_terms: D000368:Aged; D001815:Bloodletting; D005260:Female; D006801:Humans; D011087:Polycythemia Vera / Q000473:pathology / Q000628:therapy*; D055728:Primary Myelofibrosis / Q000473:pathology*