@article{Manton2006,
author = {Manton, K.G. and Gu, X. and V.L., Lamb},
title= {Change in Chronic Disability from 1982 to 2004/2005 as Measured by Long-Term Changes in Function and Health in the U.S. Elderly Population},
year = {2006},
doi = {10.1073/pnas.0608483103},
journal = {Proceedings of the National Academy of Sciences},
volume = {103},
number = {48},
pages = {18374--18379},
}