@article{ref1,
title="Bicycle helmets. Risk taking is influenced by people's perception of safety and danger",
journal="British medical journal: BMJ",
year="2001",
author="Hillman, M. and Adams, J.",
volume="322",
number="7293",
pages="1063-1064",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}