@article{ref1,
title="Trauma and lumbar disc herniation in childhood",
journal="California medicine",
year="1973",
author="Ambrus, L. and Papatheodorou, C.",
volume="119",
number="4",
pages="66-68",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-1264",
doi="",
url="http://dx.doi.org/"
}