@article{ref1,
title="Chronic post-traumatic headaches are not a myth",
journal="Cephalalgia",
year="1996",
author="Evans, R. W.",
volume="16",
number="7",
pages="461-461",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0333-1024",
doi="",
url="http://dx.doi.org/"
}