@article{ref1,
title="Headache--an industrial nemesis",
journal="Industrial medicine and surgery",
year="1967",
author="Diamond, S. and Baltes, B. J.",
volume="36",
number="9",
pages="585-587",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0019-8536",
doi="",
url="http://dx.doi.org/"
}