@article{ref1,
title="Survivorship Bias after Military Thoracic Injuries",
journal="World journal of surgery",
year="2011",
author="Ng, Calvin S. H. and Ho, Anthony M. H. and Underwood, Malcolm J. and Graham, Tim R.",
volume="35",
number="12",
pages="2826-7; author reply 2828",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0364-2313",
doi="10.1007/s00268-011-1216-2",
url="http://dx.doi.org/10.1007/s00268-011-1216-2"
}