@article{ref1,
title="The frequency of cervical spine injuries in motorcycle accidents",
journal="Chirurgia Narzadow Ruchu i Ortopedia Polska",
year="1963",
author="Oblonczek, G.",
volume="28",
number="",
pages="803-804",
abstract="<p>[Abstract unavailable]</p> <p>Language: pl</p>",
language="pl",
issn="0009-479X",
doi="",
url="http://dx.doi.org/"
}