RT Journal Article SR Electronic T1 Electrocardiography was highly sensitive but only moderately specific in detecting chronic heart failure JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 155 OP 155 DO 10.1136/ebm.1996.1.155 VO 1 IS 5 YR 1996 UL http://ebm.bmj.com/content/1/5/155.abstract AB