METHODS: After obtaining ethical approval and written informed consent,25 postoperative patients were asked to quantify their level of pain on a numeric rating scale( NRS,0-10) at different time points in the recovery room.
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- 方法：在獲得倫理批準及知情同意后，恢復室中25名術(shù)后患者被要求在數值評分量表（RS,0-10)量化他們各時(shí)間點(diǎn)的疼痛程度。
