@article{Agree1999,
author = {Agree, E.M.},
title= {The influence of personal care and assistive devices on the measurement of disability},
year = {1999},
doi = {10.1016/S0277-9536(98)00369-4},
journal = {Social Science & Medicine},
volume = {48},
number = {4},
pages = {427--443},
}