Search results: DC.title:Clinical AND DC.title:response AND DC.title:to AND DC.title:ertapenem AND DC.title:in AND DC.title:severe AND DC.title:community-acquired AND DC.title:pneumonia: AND DC.title:a AND DC.title:retrospective AND DC.title:series AND DC.title:in AND DC.title:an AND DC.title:elderly AND DC.title:population