@article{ref1,
title="Thoracic fractures: classification and the relevance of instrumentation",
journal="Clinical neurosurgery",
year="1992",
author="Haid, R. W. and Kopitnik, T. A.",
volume="38",
number="",
pages="213-233",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0069-4827",
doi="",
url="http://dx.doi.org/"
}