@article{ref1,
title="Bumper injuries",
journal="Canadian Medical Association journal",
year="1973",
author="",
volume="108",
number="11",
pages="1426-1428",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-4409",
doi="",
url="http://dx.doi.org/"
}