@article{Qiu2011,
author = {Qiu, P. and Caine, E. and Yang, Y. and Chen, Q. and Li, J. and Ma, X.},
title= {Depression and associated factors in internal migrant workers in China},
year = {2011},
doi = {10.1016/j.jad.2011.05.043},
volume = {134},
number = {1–3},
pages = {198--207},
}