7[1]Sobin LH, Wittekind CH. UICC: TNM classification of malignant tumours. 5thed. New York: Wiley-liss Press 1997:17 -46
8[2]Ringash J, Bezjak A. A structured review of quality of life instruments for head and neck cancer patients. Head Neck 2001; 23:201,213
9[3]Hammerlid E, Mercke C, Sullivan M, et al. A prospective quality of life study of patients with laryngeal carcinoma by tumor stage and different radiation therapy schedules. Laryngoscope 1998; 108:747 - 59
10[5]Finizia C, Hammerlid E, Westin T, et al. Quality of life study and voice in patients with laryngeal carcinoma: a post treatment comparison of laryngectomy (salvage surgery) versus radiotherapy. Laurngoscope 1998; 108:1566
