1. Manual for staging of cancer;American Joint Committee for Cancer Staging and End Result Reporting (AJCS),1978
2. Radiation therapy of carcinoma of vocal cord without mucosal reaction;Buschke;AJR,1963
3. Regression models and life tables;Cox;J. R. Stat. Soc. B,1972
4. Reasons for failure in squamous cell carcinomas of the larynx;Fletcher;Laryngoscope,1975