@article{ref1,
title="Isolated bilateral fracture of the first rib associated with a badly fitting crash helmet",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1982",
author="Hoekstra, H. J. and Binnendijk, B.",
volume="126",
number="20",
pages="899-900",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}