title: X-ray changes in polycythaemia vera.
mesh_terms: D000328:Adult; D000368:Aged; D001776:Blood Circulation Time; D001810:Blood Volume; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007734:Kymography; D008168:Lung / Q000000981:diagnostic imaging; D008171:Lung Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011087:Polycythemia Vera / Q000175:diagnosis / Q000000981:diagnostic imaging*; D011652:Pulmonary Circulation; D011658:Pulmonary Fibrosis / Q000000981:diagnostic imaging; D011859:Radiography; D012075:Remission, Spontaneous