@article{ref1,
title="Do cycle helmets work?",
journal="British dental journal",
year="2004",
author="Maidment, Y.",
volume="196",
number="11",
pages="662-662",
abstract="Abstract unavailable.",
language="",
issn="0007-0610",
doi="10.1038/sj.bdj.4811363",
url="http://dx.doi.org/10.1038/sj.bdj.4811363"
}