@article{ref1,
title="Head injuries in children",
journal="British medical journal: BMJ",
year="1972",
author="Clarke, P. R.",
volume="1",
number="5799",
pages="570-571",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}