@article{ref1,
title="Hazard surveillance: a proposal",
journal="Journal of public health policy",
year="1988",
author="Wegman, David H. and Eisen, Ellen A. and Froines, J. R.",
volume="9",
number="3",
pages="335-338",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0197-5897",
doi="",
url="http://dx.doi.org/"
}