@article{Payne2015,
author = {Payne, C.F.},
title= {Aging in the Americas: Disability-free life expectancy among adults aged 65 and older in the United States, Costa Rica, Mexico, and Puerto Rico},
year = {2015},
doi = {10.1093/geronb/gbv076},
volume = {73},
number = {2},
pages = {337--348},
}