1﹒American Heart Association(2003)Heart Disease and Stroke Statistics —2004 update﹒American Heart Association,Dal as 2﹒Chambers BR,Norris J W,Shurvel BL,Hachinski VC﹒Prognosis of acute stroke﹒Neurology,1987,37∶221~225 3﹒International Stroke Trial Col abor ......