RT Journal Article SR Electronic T1 Using cardiovascular risk stratification to identify those at high risk may be cost effective compared to the government strategy of national screening for all adults aged 40–74 JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 156 OP 157 DO 10.1136/ebm1106 VO 15 IS 5 A1 Norman Waugh YR 2010 UL http://ebm.bmj.com/content/15/5/156.abstract AB