目的探讨老年人院内获得性肺炎（HAP）的临床、病原学特点、易患因素及防治对策。
Objective: To investigate clinical and etiological characteristics, predisposing factors of hospital-acquired pneumonia (HAP) in senile people and to explore the preventive and therapeutic strategies.
目的为探讨老年人肺癌院内获得性肺炎的临床特点、病原菌及耐药情况，为临床提供依据。
ObjectiveTo study the clinical manifestation of lung cancer complicated by hospital acquired pneumonia, pathogen and its drug - fast strains to provide applicable clinical evidence.
目的为探讨老年人肺癌院内获得性肺炎的临床特点、病原菌及耐药情况，为临床提供依据。
ObjectiveTo study the clinical manifestation of lung cancer complicated by hospital acquired pneumonia, pathogen and its drug - fast strains to provide applicable clinical evidence.
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