Alexander, Gene E. and Furey, Maura L. and Grady, Cheryl L. and Pietrini, Pietro and Brady, Daniel R. and Mentis, Marc J. and Schapiro, Mark B. Association of premorbid intellectual function with cerebral metabolism in Alzheimer's disease: implications for the cognitive reserve hypothesis. American Journal of Psychiatry, 154 (2). pp. 165-172. ISSN 0002-953X (1997)