@article{ref1,
title="Spondylolisthesis and trauma",
journal="Industrial medicine and surgery",
year="1965",
author="Soren, A.",
volume="34",
number="12",
pages="917-921",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0019-8536",
doi="",
url="http://dx.doi.org/"
}