PT - JOURNAL ARTICLE AU - Arun Dahiya AU - William Vollbon AU - Christine Jellis AU - David Prior AU - Sudhir Wahi AU - Thomas Marwick TI - The Authors' reply AID - 10.1136/hrt.2011.223743 DP - 2011 May 01 TA - Heart PG - 782--782 VI - 97 IP - 9 4099 - http://heart.bmj.com/content/97/9/782.2.short 4100 - http://heart.bmj.com/content/97/9/782.2.full SO - Heart2011 May 01; 97