PT - JOURNAL ARTICLE AU - J-W Ha AU - S-Y Cho TI - Prolonged sinus arrest after coronary artery spasm AID - 10.1136/heart.89.5.558 DP - 2003 May 01 TA - Heart PG - 558--558 VI - 89 IP - 5 4099 - http://heart.bmj.com/content/89/5/558.short 4100 - http://heart.bmj.com/content/89/5/558.full SO - Heart2003 May 01; 89