@article{ref1,
title="Tomahawk head injury",
journal="Archives of internal medicine",
year="1958",
author="Summers, T. B.",
volume="102",
number="5",
pages="820-822",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9926",
doi="",
url="http://dx.doi.org/"
}