RT Journal Article SR Electronic T1 Spironolactone reduced mortality in severe congestive heart failure JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 11 OP 11 DO 10.1136/ebm.5.1.11 VO 5 IS 1 YR 2000 UL http://ebm.bmj.com/content/5/1/11.abstract AB