RT Journal Article SR Electronic T1 Review: long-term β-blocker use reduces mortality after myocardial infarction JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 12 OP 12 DO 10.1136/ebm.5.1.12 VO 5 IS 1 YR 2000 UL http://ebm.bmj.com/content/5/1/12.abstract AB