title: [Radiotherapy of primary squamous cell carcinoma of the trachea and main bronchus (a report of 6 cases)].
mesh_terms: D000368:Aged; D001984:Bronchial Neoplasms / Q000532:radiotherapy*; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011882:Radiotherapy, High-Energy; D014134:Tracheal Neoplasms / Q000532:radiotherapy*