目的：初步评价超分割外照射加立体定向适形放射剂量治疗局部复发鼻咽癌的临床疗效及毒副反应。
OBJECTIVE:To evaluate the clinical value of hyperfractionated external irradiation followed by 3D conformal radiation therapy boost to recurrent NPC after primary radiotherapy.
目的：初步评价超分割外照射加立体定向适形放射剂量治疗局部复发鼻咽癌的临床疗效及毒副反应。
OBJECTIVE:To evaluate the clinical value of hyperfractionated external irradiation followed by 3D conformal radiation therapy boost to recurrent NPC after primary radiotherapy.
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