Left Ventricular Systolic Dysfunction and the Risk of Ischemic Stroke in a Multiethnic PopulationStroke 37:1715-1719,1637, Hays,A.G.,et al, 2006
Vertebrobasilar DiseaseNEJM 352:2618-2626, Savitz,S.I.&Caplan,L.R., 2005