@article{ref1,
title="Incidence of spinal cord injury in the Federal Republic of Germany",
journal="Neurosurgical review",
year="1989",
author="Köning, W. and Frowein, R. A.",
volume="12 Suppl 1",
number="",
pages="562-566",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0344-5607",
doi="",
url="http://dx.doi.org/"
}