目的探讨老年患者下呼吸道感染常见病原菌的分布及耐药状况，制定针对性预防与控制措施。
OBJECTIVE to study the distribution and drug resistance of nosocomial infection pathogens from lower respiratory tract in senile patients and give draft preventive and control measures.
目的了解医院下呼吸道感染(NLRTI)的病原菌和预后特点。
Objective to investigate the pathogens and prognosis of nosocomial lower respiratory tract infection (NLRTI).
目的了解近年来呼吸科重症加强治疗病房(RICU)肺癌患者院内下呼吸道感染病原菌分布及耐药情况。
Objective to investigate the pathogenic bacteria of nosocomial infection in patients with lung cancer in respiratory intensive care unit (RICU), as well as their drug resistance.
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