@article{ref1,
title="Factors affecting prognosis in patients with flail chest",
journal="Journal of thoracic and cardiovascular surgery",
year="1970",
author="Sankaran, S. and Wilson, R. F.",
volume="60",
number="3",
pages="402-410",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-5223",
doi="",
url="http://dx.doi.org/"
}