[Congenital tracheal stenosis].
D000015:Abnormalities, Multiple / Q000175:diagnosis*; D006801:Humans; D007223:Infant; D008297:Male; D011651:Pulmonary Artery / Q000002:abnormalities*; D011859:Radiography; D014135:Tracheal Stenosis / Q000151:congenital* / Q000000981:diagnostic imaging