@article{ref1,
title="Motorcycle injuries to university students. the high price of the economical motorbike",
journal="JAMA journal of the American Medical Association",
year="1968",
author="MacKinnon, D. S. and Blazina, M. E. and Cracchiolo, A.",
volume="204",
number="1",
pages="77-78",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}