@article{ref1,
title="Ten years' experience with the Coal Workers' Health Surveillance Program, 1970-1981",
journal="Morbidity and mortality weekly report. Surveillance summaries : MMWR / Centers for Disease Control",
year="1985",
author="Althouse, R. B.",
volume="34",
number="1",
pages="33SS-37SS",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0892-3787",
doi="",
url="http://dx.doi.org/"
}