@article{ref1,
title="Risk assessment of low-level exposures",
journal="Science",
year="1995",
author="Mann, J. D.",
volume="267",
number="5198",
pages="604-605",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0036-8075",
doi="",
url="http://dx.doi.org/"
}