5Dubey P,Ha CS,Ang KK,et al.Nonnasopharyngeal lymphoepithelioma of the head and neck.Cancer,1998,82:1556-1562.
6Ahuja AT,Teo PML,To KF,et al.Palatal lymphoepitheliomas and a review of head and neck lymphoepitheliomas.Clinical Radiology,1999,54:289-293.
7Leung SY,Chung LP,Ho CM,et al.An Epstein-Barr virus positive undifferentiated carcinoma in the lacrimal sac.Histopathology,1996,28:71-75.
8Spano JP, Busson P, Arian D, et al. Nasopharyngeal carcinomas:an update. EurJ Cancer,2003,39: 2121-2135.
9Geara FB, Sanguineti G, Tucker SL, et al. Carcinoma of the nasopharynx treated by radiotherapy alone: determinants of distant metastasis and survival. Radiother Oncol, 1997,43 : 53-61.
10Shields JA,Shields CL,Brotman HK,et al. Cancer metastatic to the orbit: the 2000 Robert M. Curts Lecture. Ophthal Plast Reconstr Surg,2001,17:346-354.