@article{ref1,
title="Whiplash injuries and cervical pain",
journal="Headache",
year="1966",
author="Ellerbroek, W. C.",
volume="6",
number="2",
pages="73-77",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0017-8748",
doi="",
url="http://dx.doi.org/"
}