Methods We chose 100 patients treated in thoracic surgery department, Liuan People's Hospital , from January to Octomber in 2009.

方法选择2009年1月至10月六安市人民医院神经外二科住院治疗的100例脑外科患者，随机分为观察组和对照组各50例。

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The higher isolating rates of pathogens occurred in department of neurosurgery, department of neurology, department of thoracic surgery and respiratory department.

病原菌检出率较高的科室为神经外科、神经内科、胸外科、呼吸内科；

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Lu Min Department of Thoracic Surgery; the First Affiliated Hospital; China Medical University; Shenyang(110001);

中国医科大学附属一院胸外科；

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Lu Min Department of Thoracic Surgery; the First Affiliated Hospital; China Medical University; Shenyang(110001);

中国医科大学附属一院胸外科；

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