4Fein DA, Lee WR, Amos WR, et al. Oropharyngeal carcinoma treated with radiotherapy: a 30-year experience[J]. Int J Radiat Oncol Biol Phys, 1996, 34(3): 289-296.
5Perez CA, Patel MM, Clifford-chao KS, et al. Carcinoma of the tonsillar fossa: Prognostic factors and longtime therapy outcome[J]. Int J Radiat Oncol Biol Phys, 1998, 42(6): 1077-1084.
6Hasegawa Y, Matsuua H. Retropharyngeal nole dissection in cancer of oropharynx and hypopharynx[J]. Head Neck, 1994, 16(3): 173-179.
7Katsuno S, Takemae T, Ishiyama T, et al. Is carotid reconstruction for advanced cancer in the neck a safe procedure[J]. Otolaryngol Head Neck Surg, 2001, 124(4): 222-224.