A population-based neuropathologic study S. Ahtiluoto, MD, T. Polvikoski, MD, PhD, M. Peltonen, PhD, A. Solomon, MD, PhD, J. Tuomilehto, MD, MA, PhD, B. Winblad, MD, PhD, R. Sulkava, MD, PhD and M. Kivipelto, MD, PhD From the Department of Chronic Disease Prevention (S.A., M.P.), National Institute for Health and Welfare, Helsinki, Finland; Institute for Ageing and Health (T.P.), Newcastle Univers