RT Journal Article SR Electronic T1 Review: empirical atypical coverage does not reduce mortality in hospitalised patients with community acquired pneumonia JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 74 OP 74 DO 10.1136/ebm.11.3.74 VO 11 IS 3 YR 2006 UL http://ebm.bmj.com/content/11/3/74.abstract AB