in the entire group of 254 patients followed for 395.6 patient-years , the thromboembolic rate was significantly less in the warfarin group ( warfarin vs dipyridamole-aspirin , p less than .005 ; warfarin vs pentoxifylline-aspirin , p less than .05 ) .
C0732279
dipyridamole-aspirin
C0004057
aspirin