Pelucchi S, Carinci F, Farina A, Calearo C, Sticozzi L, Pastore A.
Supraglottic tumour categories: 1987 and 1997 International Union Against Cancer classification.
J Otolaryngol. 2001 Feb;30(1):6-9.
http://www.ncbi.nlm.nih.gov/pubmed/11770978
Pelucchi S, Carinci F, Farina A, Calearo C, Sticozzi L, Pastore A.
Supraglottic tumour categories: 1987 and 1997 International Union Against Cancer classification.
J Otolaryngol. 2001 Feb;30(1):6-9.
http://www.ncbi.nlm.nih.gov/pubmed/11770978