@article{ref1,
title="Thoracic contusion; study of 193 cases",
journal="Gaceta Medica de Mexico",
year="1958",
author="Pacheco, C. R. and Cantu, E. and Cortez, F.",
volume="88",
number="9",
pages="639-48; discussion 649",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0016-3813",
doi="",
url="http://dx.doi.org/"
}