PT - JOURNAL ARTICLE AU - M K DAVIES AU - A HOLLMAN TI - Ambulances AID - 10.1136/heart.86.5.488 DP - 2001 Nov 01 TA - Heart PG - 488--488 VI - 86 IP - 5 4099 - http://heart.bmj.com/content/86/5/488.short 4100 - http://heart.bmj.com/content/86/5/488.full SO - Heart2001 Nov 01; 86