Risk factors for death or stroke after carotid endarterectomy: observations from the Ontario Carotid Endarterectomy Registry
Tu JV, Wang H, Bowyer B, Green L, Fang J, Kucey D; Participants in the Ontario Carotid Endarterectomy Registry. Stroke. 2003; 34(11):2568-73. Epub 2003 Oct 2.