@article{ref1,
title="Environmental epidemiology",
journal="Journal of the Louisiana State Medical Society",
year="1984",
author="Ratard, R. C. and Clarkson, J. R.",
volume="136",
number="7",
pages="24-26",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0024-6921",
doi="",
url="http://dx.doi.org/"
}