PT - JOURNAL ARTICLE AU - Timothy D Warner AID - 10.1136/hrt.2010.216820 DP - 2011 Feb 01 TA - Heart PG - 264--264 VI - 97 IP - 3 4099 - http://heart.bmj.com/content/97/3/264.short 4100 - http://heart.bmj.com/content/97/3/264.full SO - Heart2011 Feb 01; 97