@article{ref1,
title="Mine rescue workers: their perceived health and absence from work",
journal="Occupational health: a journal for occupational health nurses",
year="1981",
author="Mckenna, S. P. and Hunt, S. M. and McEwen, J.",
volume="33",
number="2",
pages="70-74",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0029-7917",
doi="",
url="http://dx.doi.org/"
}