A classification and outline of cerebrovascular diseases. II.

A report by an ad hoc Committee established by the Advisory Council for the National Institute of Neurological and Communicative Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20014. Reprint requests should be addressed to: Stroke Program, National Institute of Neurological and Communicative Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20014.