@article{ref1,
title="Bicycle helmets",
journal="Tidsskrift for den Norske Laegeforening",
year="2000",
author="Mohr, E",
volume="120",
number="19",
pages="2331-2331",
abstract="Abstract unavailable.",
language="",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}