@article{ref1,
title="Bike helmets: a reply to replies",
journal="Journal of medical ethics",
year="2013",
author="Hooper, Carwyn Rhys and Spicer, John",
volume="41",
number="8",
pages="719-720",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0306-6800",
doi="10.1136/medethics-2013-101723",
url="http://dx.doi.org/10.1136/medethics-2013-101723"
}