PT - JOURNAL ARTICLE AU - Suthesh Sivapalaratnam AU - S Matthijs Boekholdt TI - The Authors' reply AID - 10.1136/hrt.2011.222299 DP - 2011 Apr 15 TA - Heart PG - 684--684 VI - 97 IP - 8 4099 - http://heart.bmj.com/content/97/8/684.2.short 4100 - http://heart.bmj.com/content/97/8/684.2.full SO - Heart2011 Apr 15; 97