@article{ref1,
title="SURVEY of the occupational environment: an essential of industrial medical practice",
journal="Industrial medicine and surgery",
year="1957",
author="",
volume="26",
number="3",
pages="149-155",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0019-8536",
doi="",
url="http://dx.doi.org/"
}