[Radiation tracheostenosis (report of 6 cases)].
D004938:Esophageal Neoplasms / Q000532:radiotherapy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011832:Radiation Injuries / Q000209:etiology*; D011882:Radiotherapy, High-Energy / Q000009:adverse effects*; D014135:Tracheal Stenosis / Q000175:diagnosis / Q000209:etiology* / Q000517:prevention & control