@article{ref1,
title="Surveillance of disorders caused by occupational hazards--principles and practice: a review",
journal="Journal of the Royal Society of Medicine",
year="1991",
author="Baker, Ernest L.",
volume="84",
number="7",
pages="418-422",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0141-0768",
doi="",
url="http://dx.doi.org/"
}