Objective: To investigate the effect of Perioperative Psychological Support Therapy (PPST) on analgesia.
目的：探讨围手术期心理支持疗法(PPST)在手术后镇痛的效果。
Objective To investigate the influences of continuous epidural analgesia on immune function, authors observed the changes of peripheral blood T lymphocyte subsets during perioperative period.
目的测定围术期外周血T淋巴细胞亚群的变化，旨在探讨术中及术后连续硬膜外镇痛对免疫功能的影响。
Objective To understand cognition and need for analgesia in perioperative patients.
目的了解手术患者在手术前后对镇痛的认知及需求。
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