PT - JOURNAL ARTICLE AU - Breidthardt, T AU - Mueller, C TI - The authors’ reply DP - 2008 Apr 01 TA - Heart PG - 509--509 VI - 94 IP - 4 4099 - http://heart.bmj.com/content/94/4/509.short 4100 - http://heart.bmj.com/content/94/4/509.full SO - Heart2008 Apr 01; 94