@article{Haan1987,
author = {Haan, M. and Kaplan, G.A. and Camacho, T.},
title= {Poverty and health. Prospective evidence from the Alameda County Study},
year = {1987},
journal = {American Journal of Epidemiology},
volume = {125},
number = {6},
pages = {989--998},
}