title: [Preliminary clinico-radiological study of saber-sheath trachea].
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014132:Trachea / Q000473:pathology*; D014133:Tracheal Diseases / Q000000981:diagnostic imaging* / Q000209:etiology