PT - JOURNAL ARTICLE AU - Treasure, Tom TI - Comment AID - 10.1136/hrt.69.1.63 DP - 1993 Jan 01 TA - British Heart Journal PG - 63--64 VI - 69 IP - 1 4099 - http://heart.bmj.com/content/69/1/63.short 4100 - http://heart.bmj.com/content/69/1/63.full SO - Heart1993 Jan 01; 69