@article{ref1,
title="Pesticides and human health--an epidemiologic approach",
journal="Health services reports (HSMHA)",
year="1974",
author="Gehlbach, S. H. and Williams, W. A. and Woodall, J. S. and Freeman, J. I.",
volume="89",
number="3",
pages="274-277",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-2918",
doi="",
url="http://dx.doi.org/"
}