1. Tumors of the upper respiratory tract and ear;Ash,1964
2. Gli stadi precancerosi del laringe;Bocca;Nuovo Arch Ital Otol,1974
3. Precancerous lesions of the larynx;Bosatra;Round table Symposium, Trieste. Acta Otolaryngol Suppl,1977
4. Studio chnico sidle lesioni precancerigne delta laringe;Ciampa;H Valsalva,1985
5. In situ carcinoma of the vocal cords;Elman;Cancer,1979