方法120名(年龄18 ~ 75岁)接受腹部外科，妇科及矫形外科手术后疼痛达到中度或重度的病人参加本研究。
Methods 120 patients aged 18? 75 years old were enrolled in this study, whose postoperative pain reached moderate to severe level after abdominal surgery, gynecol6gic surgery or orthopedic surgery.
方法120名(年龄18 ~ 75岁)接受腹部外科，妇科及矫形外科手术后疼痛达到中度或重度的病人参加本研究。
Methods 120 patients aged 18? 75 years old were enrolled in this study, whose postoperative pain reached moderate to severe level after abdominal surgery, gynecol6gic surgery or orthopedic surgery.
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