@article{ref1,
title="Pathophysiology of post-concussion headache",
journal="Acta neurochirurgica",
year="1951",
author="Auersperg, A.",
volume="1",
number="4-5",
pages="381-391",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0001-6268",
doi="",
url="http://dx.doi.org/"
}