@article{ref1,
title="Occupational fluoride exposure",
journal="Journal of Occupational Medicine",
year="1977",
author="Hodge, H. C. and Smith, F. A.",
volume="19",
number="1",
pages="12-39",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-1736",
doi="",
url="http://dx.doi.org/"
}