RT Journal Article SR Electronic T1 The Authors' reply JF Heart JO Heart FD BMJ Publishing Group Ltd and British Cardiovascular Society SP 1026 OP 1026 DO 10.1136/heartjnl-2011-300220 VO 97 IS 12 A1 Hermanides, Renicus S A1 van 't Hof, Arnoud W J YR 2011 UL http://heart.bmj.com/content/97/12/1026.2.abstract AB