Setting: Level I university orthopaedic surgery department .

地点： I级大学矫形外科系。

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Objective To investigate and analyze the sleeping status of the patient in ICU of cardiothoracic surgery department.

目的对心胸外科ICU病人睡眠状况及其影响因素进行调查与分析。

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Objective To investigate the risk factors of operative incision infection in general surgery department and its preventive measures.

目的探讨普外科手术患者术后切口感染的危险因素与预防措施。

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