@article{Zhu2007,
author = {Zhu, Haiyan and Xie, Yu},
title= {Socioeconomic differentials in mortality among the oldest old in China},
year = {2007},
doi = {10.1177/0164027506296758},
URL = {https://doi.org/10.1177/0164027506296758},
volume = {29},
number = {2},
pages = {125--143},
}