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〔 Methods 〕 Ninty eight cases with functional neck dissection in our hospital from 1988 to 1997 were studied retrospectively and compared with radical neck dissection cases in the same period .

〔方法〕对近10年我院所行功能性颈淋巴结清扫术的病例作了回顾性研究，并与同期所行根治性颈淋巴结清扫术的病例作了比较分析。

Methods : Ninty six cases of injuries of optic nerve after brain trauma were divided into two groups randomly and were treated with routine management and routine management combined with hyperbaric oxygen respectively .

方法：将脑外伤合并视神经损伤96例随机分为两组，分别采用常规药物；药物加高压氧联合两种方法进行治疗，观察视力恢复情况以及疗效。

Objective : The purpose of the investigation was to determine the effects of epidural analgesia on postoperative pain and the incidence of complication after surgery for esophageal cancer . Method : Ninty ?

目的：确定硬膜外一次性镇痛法对食管癌病人术后的镇痛效果和减少并发症的意义。