PT - JOURNAL ARTICLE AU - L Ceri Davies TI - <em>Heart</em>: technology and guidelines AID - 10.1136/hrt.2007.119149 DP - 2007 Jul 01 TA - Heart PG - 785--785 VI - 93 IP - 7 4099 - http://heart.bmj.com/content/93/7/785.short 4100 - http://heart.bmj.com/content/93/7/785.full SO - Heart2007 Jul 01; 93