7LEEAW, SZEWM, AUJ S, etal. Treatment resuits for nasopharyngeal carcinoma in the modem ear the Hong Kong experience[J]. Int J Radiat Oncol Biol Phys,2005,61:1107- 1116.
8QIN D X,HU Y H,YAN J H,et al. Analysis of 1 369 patients with nasopharyngeal carcinoma treated by radiation[J]. Cancer, 1988,61 : 1117-1124.
9LIU L,LIANG S, LI L, et al. Prognostic impact of magnetic resonance imaging-detected cranial nerve involvement in nasopharyngeal carcinoma[J]. Cancer, 2009,115:1995-2003.