PT - JOURNAL ARTICLE ED - , TI - A prediction rule identified patients with atrial fibrillation at low risk of stroke while taking aspirin AID - 10.1136/ebm.9.1.29 DP - 2004 Jan 01 TA - Evidence Based Medicine PG - 29--29 VI - 9 IP - 1 4099 - http://ebm.bmj.com/content/9/1/29.short 4100 - http://ebm.bmj.com/content/9/1/29.full SO - Evid Based Med2004 Jan 01; 9