title: Observations on the clinical and pathologic features of myelofibrosis.
mesh_terms: D000328:Adult; D000368:Aged; D001853:Bone Marrow / Q000473:pathology; D001854:Bone Marrow Cells; D003238:Connective Tissue / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D055728:Primary Myelofibrosis / Q000175:diagnosis / Q000473:pathology*