@article{ref1,
title="Crushed chest injuries: 80 cases",
journal="South African journal of surgery",
year="1970",
author="Wilkinson, A. E.",
volume="8",
number="1",
pages="21-27",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-2361",
doi="",
url="http://dx.doi.org/"
}