RT Journal Article SR Electronic T1 Third and fourth heart sounds had low sensitivity but moderate to high specificity for predicting left ventricular dysfunction. JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 182 OP 182 DO 10.1136/ebm.10.6.182 VO 10 IS 6 YR 2005 UL http://ebm.bmj.com/content/10/6/182.abstract AB