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Epidemiology of Vascular Lesions Affecting the Central Nervous System: The Occurrence of Strokes in a Sample Population Under Observation for Cardiovascular Disease John M. ChapmanM.D.M.P.H.F.A.P.H.A., Leo G. ReederPh.D.F.A.P.H.A., E. Raymond BorunM.D., Virginia A. ClarkPh.D., and Anne H. Coulson CopyRightDr. Chapman is professor of epidemiology, Department of Preventive Medicine and Public Health, University of California School of Medicine, Los Angeles, Calif. His co-authors are also on the faculty of the university. https://doi.org/10.2105/AJPH.56.2.191 Published Online: August 29, 2011
Chapman et al. (Tue,) studied this question.