@article{Crimmins2011,
author = {Crimmins, E.M. and Kim, J.K. and Langa, K.M. and Weir, D.R.},
title= {Assessment of cognition using surveys and neuropsychological assessment: The Health and Retirement Study and the Aging, Demographics, and Memory Study},
year = {2011},
doi = {10.1093/geronb/gbr048},
journal = {The Journals of Gerontology, Series B},
volume = {66B},
number = {Suppl. 1},
pages = {i162‒i171},
}