Methods:60 NPC patients with N 0 2 were randomized into two groups. The patients in the first group were treated with standard hyperfractionated radiotherapy (HFR),the total dose DT 76.8Gy.

• 方法 :6 0例N0 -2 患者随机分为两组 ；30例采用标准超分割 (HFR)方式放疗 ；总量DT 76 .；8Gy;