Objective:To evaluate the effect of cisplatin(DDP) and hydroxycamptothecin (HCPT) as inhibitors of DNA topoisomerase combined with radiotherapy for nasopharyngeal carcinoma (NPC).

• 目的:探讨DNA拓扑异构酶抑制剂羟基喜树碱(HCPT)与顺铂(DDP)联合治疗鼻咽癌的价值。