RT Journal Article SR Electronic T1 Raised troponin in COPD: clinical implications and possible mechanisms JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 71 OP 72 DO 10.1136/heartjnl-2012-302969 VO 99 IS 2 A1 Stone, Ian S A1 Petersen, Steffen E A1 Barnes, Neil C YR 2013 UL http://heart.bmj.com/content/99/2/71.abstract AB