1[1]Wolf PA,Dawber TR,Thomas E Jr,et al.Epidemiologic assessment of chronic atrial fibrillation and risk of stroke:the Framingham Study[J].Neurology,1978,28:973.
3[4]International Stroke Trial Collaborative Group.The International Stroke Trial (IST):a randomised trial of aspirin,subcutaneous heparin,both or neither among 19345 patients with acute ischemic stroke[J].Lancet,1997,349:1569-1581.