Objective To compare the efficacy and safety of levofloxacin (LVFX) and ofoxacin (OFLX) in treatment of lower respiratory tract bacterial infections (LRTBI) in the aged.
目的对照研究利复星（LVFX）与奥复星（OFLX）治疗老年人下呼吸道细菌感染的临床疗效及安全性。
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