RT Journal Article SR Electronic T1 Salmeterol and fluticasone propionate did not reduce mortality in chronic obstructive pulmonary disease JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 114 OP 114 DO 10.1136/ebm.12.4.114 VO 12 IS 4 YR 2007 UL http://ebm.bmj.com/content/12/4/114.abstract AB