@article{ref1,
title="Persistent headache attributed to traumatic injury to the head: can we do better?",
journal="Canadian journal of neurological sciences",
year="2019",
author="Becker, Werner J.",
volume="46",
number="1",
pages="3-4",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0317-1671",
doi="10.1017/cjn.2018.359",
url="http://dx.doi.org/10.1017/cjn.2018.359"
}