TY - JOUR A1 - Crimmins, E.M. A1 - Kim, J.K. A1 - Langa, K.M. A1 - Weir, D.R. T1 - Assessment of cognition using surveys and neuropsychological assessment: The Health and Retirement Study and the Aging, Demographics, and Memory Study Y1 - 2011 DO - 10.1093/geronb/gbr048 JF - The Journals of Gerontology, Series B VL - 66B IS - Suppl. 1 ER -