@article{ref1,
title="Head injuries in the elderly",
journal="British journal of neurosurgery",
year="1999",
author="Maurice-Williams, R. S.",
volume="13",
number="1",
pages="5-8",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0268-8697",
doi="",
url="http://dx.doi.org/"
}