@article{ref1,
title="'Car-crusher colon'",
journal="British journal of surgery",
year="1994",
author="Cripps, N. P. J.",
volume="81",
number="3",
pages="474-475",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1323",
doi="",
url="http://dx.doi.org/"
}