aspirin
METHODS: A longitudinal cohort study was performed       comparing 460 participants with intermittent AF with 1,552 with sustained AF       treated with aspirin in the Stroke Prevention in Atrial Fibrillation studies and        followed for a mean of two years.
METHODS: A longitudinal cohort study was performed       comparing 460 participants with intermittent AF with 1,552 with sustained  @OBJECT$         @PREDICAT$  with  @SUBJECT$  in the Stroke Prevention in Atrial Fibrillation studies and        followed for a mean of two years.