RT Journal Article SR Electronic T1 Mitral leaflet clefts: innocent bystander or covert foe? JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1087 OP 1088 DO 10.1136/heartjnl-2015-307759 VO 101 IS 14 A1 Patrick M McCarthy YR 2015 UL http://heart.bmj.com/content/101/14/1087.abstract AB