@article{ref1,
title="Accident prevention: Fewer children with head injuries following helmet campaign",
journal="Vardfacket",
year="1994",
author="Sellstrom, E.",
volume="18",
number="4",
pages="XX-XXI",
abstract="Abstract unavailable.",
language="",
issn="0347-0911",
doi="",
url="http://dx.doi.org/"
}