@article{Zimmer2010,
author = {Zimmer, Z. and Wen, M. and Kaneda, T.},
title= {A multi-level analysis of urban/rural and socioeconomic differences in functional health status transition among older Chinese},
year = {2010},
doi = {10.1016/j.socscimed.2010.03.048},
volume = {71},
number = {3},
pages = {559--567},
}