The objective is to study the relativity between analgesia methods and operation complication.
目的在于研究镇痛方法与术后并发症的相关性。
AIM To observe the analgesic effect of preemptive analgesia on headache following operation on nasal cavity and investigate the feasibility of its clinical application.
目的：观察超前镇痛用于鼻腔手术后头痛的镇痛效果，探讨其临床应用的可行性。
Objective To study the analgesia effect after operation with varied dosage of TRAMADOL.
目的研究不同剂量曲马多对术后镇痛的效果。
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