The trachea in children.
D001158:Arteries / Q000002:abnormalities; D002648:Child; D006801:Humans; D007223:Infant; D011859:Radiography; D014132:Trachea / Q000002:abnormalities / Q000000981:diagnostic imaging*; D014133:Tracheal Diseases / Q000000981:diagnostic imaging; D014135:Tracheal Stenosis / Q000000981:diagnostic imaging / Q000209:etiology