4Calais G,Alfonsi M,Bardet E. Randomized trial of radiation therapy versus concomit ant chemotherapy and radiation therapy for advanced statge oropharynx carcinoma[J].J Nat ICancer Inst,1999.2081.doi:10.1093/jnci/91.24.2081.
5DORR W,HAMILTON C S,BOYD T,et al.Radiation-induced changes in cellularity and proliferation in human oral mucosa[J].Int J Radiat Oncol Biol Phys,2002,52(4):911 -917.