RT Journal Article SR Electronic T1 Psychological distress and mortality in stable coronary heart disease: persistence of high distress means increased risk JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1840 OP 1841 DO 10.1136/heartjnl-2017-311610 VO 103 IS 23 A1 Gjin Ndrepepa YR 2017 UL http://heart.bmj.com/content/103/23/1840.abstract AB