@article{ref1,
title="Duodenal perforation from blunt abdominal trauma",
journal="Journal of trauma",
year="1974",
author="Hawkins, M. L. and Mullen, J. T.",
volume="14",
number="4",
pages="290-292",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}