@article{ref1,
title="Effect of industrial and occupational factors on morbidity and disability among miners",
journal="Sovetskoe Zdravookhranenie",
year="1981",
author="Petrov, G. P.",
volume="",
number="8",
pages="40-42",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0038-5239",
doi="",
url="http://dx.doi.org/"
}