RT Journal Article SR Electronic T1 Secondary prevention of coronary heart disease in South Wales: a survey following myocardial infarction JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1332 OP 1333 DO 10.1136/hrt.2003.010942 VO 90 IS 11 A1 P M Underwood A1 L S Cozma A1 K Laji A1 H Cohen A1 K Oboubie A1 P Beck YR 2004 UL http://heart.bmj.com/content/90/11/1332.abstract AB