RT Journal Article SR Electronic T1 Simvastatin was cost effective across a broad range of risk and age groups JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 58 OP 58 DO 10.1136/ebm.12.2.58 VO 12 IS 2 YR 2007 UL http://ebm.bmj.com/content/12/2/58.abstract AB