@article{ref1,
title="A systems approach to improve trauma patient care",
journal="South African journal of surgery",
year="1973",
author="Boyd, D. R.",
volume="11",
number="4",
pages="163-175",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0038-2361",
doi="",
url="http://dx.doi.org/"
}