RT Journal Article SR Electronic JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1466 OP 1466 DO 10.1136/heartjnl-2013-304516 VO 99 IS 19 A1 Agata Plonczak A1 Vishal Luther A1 Raffi Kaprielian YR 2013 UL http://heart.bmj.com/content/99/19/1466.2.abstract AB