@article{ref1,
title="Changing attitudes to the management of severe head injuries",
journal="British medical journal: BMJ",
year="1976",
author="Lewin, W.",
volume="2",
number="6046",
pages="1234-1239",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}