atrial fibrillation
OBJECTIVE: Appropriate use of drugs to prevent thromboembolism in patients with       atrial fibrillation (AF) involves comparing the patient's risk of stroke and risk       of hemorrhage.
OBJECTIVE: Appropriate use of drugs to prevent thromboembolism in  @OBJECT$   @PREDICAT$         @SUBJECT$  (AF) involves comparing the patient's risk of stroke and risk       of hemorrhage.