RT Journal Article SR Electronic T1 The dangers of mandating policy in the absence of clear evidence JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 341 OP 342 DO 10.1136/hrt.2010.217778 VO 97 IS 4 A1 Satin, Morton YR 2011 UL http://heart.bmj.com/content/97/4/341.2.abstract AB