@article{ref1,
title="Later investigation of head injury",
journal="Journal of accident and emergency medicine",
year="1998",
author="Swann, I. J. and McCarter, D. H.",
volume="15",
number="5",
pages="344-348",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1351-0622",
doi="",
url="http://dx.doi.org/"
}