From Sea to Shining Sea: What Is It About Where You Live and Your Stroke Risk?
Stroke 38:2210-2212, Howard,V.J., 2007
Illicit Drug-Associated Ischemic Stroke in the Baltimore-Washington Young Stroke Study
Neurol 50:1688-1693, Sloan,M.A.,et al, 1998
Lesions in Cerebrovascular Disease & their Clinical Implications
BMJ 89, Hutchinson,E.C., 1972