PT - JOURNAL ARTICLE AU - Alistair Lindsay TI - JournalScan DP - 2009 Jan 15 TA - Heart PG - 171--172 VI - 95 IP - 2 4099 - http://heart.bmj.com/content/95/2/171.short 4100 - http://heart.bmj.com/content/95/2/171.full SO - Heart2009 Jan 15; 95