@article{ref1,
title="The effectiveness of helmets in reducing head injuries and hospital treatment costs: a multicentre study",
journal="Medical journal of Australia",
year="2013",
author="Dinh, Michael M. and Curtis, Kate and Ivers, Rebecca Q.",
volume="198",
number="8",
pages="415-417",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}