@article{ref1,
title="Head injuries- I. Brain injury and its diagnosis",
journal="British medical journal: BMJ",
year="1953",
author="Northfield, D. W. C.",
volume="1",
number="4800",
pages="38-40",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}