@article{Martin2015,
author = {Martin, L.G. and Zimmer, Z. and Lee, J.},
title= {Foundations of activity of daily living trajectories of older Americans},
year = {2015},
doi = {10.1093/geronb/gbv074},
journal = {Journal of Gerontology: Social Sciences},
volume = {72},
number = {1},
pages = {129‒139},
}