@article{ref1,
title="The impact of occupational effects on workers' health. I. Morbidity",
journal="Revista de saude publica",
year="1988",
author="Mendes, Raquel",
volume="22",
number="4",
pages="311-326",
abstract="<p>[Abstract unavailable]</p> <p>Language: pt</p>",
language="pt",
issn="0034-8910",
doi="",
url="http://dx.doi.org/"
}