authors Kenneth Langa, MD, PhD Llewellyn, David J Lang, Iain A Weir, David R Wallace, Robert B Kabeto, Mohammed U Huppert, Felicia A
has subject area Aged Aged, 80 and over Aging Cognition Cognition Disorders Cohort Studies Cross-Sectional Studies England Female Health Status Humans Longitudinal Studies Male Neuropsychological Tests United States