@article{ref1,
title="Trends in head injuries among child bicyclists",
journal="British medical journal: BMJ",
year="1994",
author="Pitt, W. R. and Thomas, S. and Nixon, Judy and Clark, Roseanne and Battistutta, Diana and Acton, Caroline H.",
volume="308",
number="6922",
pages="177-177",
abstract="Abstract unavailable.",
language="",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}