@article{ref1,
title="Intervertebral disk protrusion and accident",
journal="Medizinische klinik (Munich, Germany : 1983)",
year="1953",
author="Duben, W.",
volume="48",
number="31",
pages="1122-1123",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0723-5003",
doi="",
url="http://dx.doi.org/"
}