Prevention of stroke.
D000368:Aged; D000925:Anticoagulants / Q000627:therapeutic use; D001241:Aspirin / Q000627:therapeutic use; D002548:Cerebral Revascularization; D002561:Cerebrovascular Disorders / Q000517:prevention & control*; D004691:Endarterectomy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010276:Parasympatholytics / Q000627:therapeutic use; D012306:Risk; D014481:United States
D000925:Anticoagulants; D010276:Parasympatholytics; D001241:Aspirin