5Ringash J, Bezjuk A. Use of quality-of-life assessment for na- sopharygeal cancer[ J ]. Clin Dncol, 2006, 18(4) : 725 -727.
6Outes JE, Clark JR, Read J, et al. Prospective evuluation of quality of and nutrition before and after treatment for nasopha- ryngeal carcinoma [ J ]. Arch Otolaryngol Head Neck Surg, 2007, 133(7): 533-540.
7Kamel R, ABadawy S, Kandil T, et al. Nasal and paranasal sinus changes after radiotherapy for nasopharyngeal carcinoma [J]. Acta Otolaryngol, 2004, 124(4) : 532 -535.
8Scott PS, Warren S, William HS, et al. Nasal mucociliary clearaace after radiation therapy [ J ]. Laryngoscope, 1995, 105(4) : 380.
