@article{Torres2015,
author = {Torres, J.M. and Waldinger, R. },
title= {Civic stratification and the exclusion of undocumented immigrants from cross-border health care},
year = {2015},
doi = {10.1177/0022146515610617},
journal = {Journal of Health and Social Behavior },
volume = {56},
number = {4},
pages = {438--459},
}