Oral anticoagulants are better than aspirin for secondary prevention after myocardial infarction and after cerebral ischaemia in combination with non-rheumatic atrial fibrillation.

• 背景：心肌梗死和合并非风湿性房颤的脑缺血的二级预防，口服抗凝剂比阿斯匹林更佳。