RT Journal Article SR Electronic T1 Meta-analysis: Many factors affect mortality from community-acquired pneumonia JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 156 OP 156 DO 10.1136/ebm.1996.1.156 VO 1 IS 5 YR 1996 UL http://ebm.bmj.com/content/1/5/156.abstract AB