RT Journal Article SR Electronic T1 The Authors' reply JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1111 OP 1112 DO 10.1136/heartjnl-2011-300252 VO 97 IS 13 A1 Jolanta M Siller-Matula A1 Bernd Jilma YR 2011 UL http://heart.bmj.com/content/97/13/1111.2.abstract AB