@article{ref1,
title="Mandatory bicycle helmets?",
journal="CMAJ : Canadian Medical Association journal",
year="1993",
author="Quinn, D.",
volume="149",
number="11",
pages="1624-1624",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}