@article{ref1,
title="BMX bike injuries",
journal="British medical journal (clinical research edition)",
year="1984",
author="",
volume="289",
number="6453",
pages="1226-1227",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0267-0623",
doi="",
url="http://dx.doi.org/"
}