@article{ref1,
title="The problem of mild head injury",
journal="Practitioner",
year="1978",
author="Jennett, B.",
volume="221",
number="1321",
pages="77-82",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-6518",
doi="",
url="http://dx.doi.org/"
}