1. Primary cancers of the trachea;HE, I.Houston; EG, Harrison; AM, Olsen;Arch Surg,1969
2. Carcinoma of the trachea: clinicopathologic study of 41 cases;Hajdu, S.I.; Huvos, A.G.; Goodner, J.T.; Foote, F.W.; Beattie, JR;Cancer,1970
3. Results of treating primary tumours of the trachea by irradition;Rostom, A.Y.; Morgan, R.L.;Thorax,1978
4. Malignant tumours of the trachea. Ann R Coll Surg Engl;Baraka, M.E.,1984
5. Carcinoma obstructing the trachea: treatment by laser resection;Laforet, E.G.; Berger, R.L.; Vaughan, C.W.;N Engl J Med,1976