@article{Zhu2007,
author = {Zhu, H. and Xie, X.},
title= {Socioeconomic differentials in mortality among the oldest old in china. using data from the 1998, 2000, and 2002 waves of the Chinese longitudinal healthy longevity survey},
year = {2007},
journal = {Research on Aging},
volume = {29},
number = {2},
pages = {125--143},
}