@article{Martin2013,
author = {Martin, L.G. and Schoeni, R.F. },
title= {Trends in Disability and Related Chronic Conditions among the Forty-and-over Population: 1997–2010},
year = {2013},
doi = {10.1016/j.dhjo.2013.06.007},
journal = {Disability and Health Journal},
volume = {7},
number = {1},
pages = {S4--S14},
}