@article{ref1,
title="Correlates of children's bicycle helmet use and short-term failure of school-level interventions",
journal="Journal of safety research",
year="1993",
author="Ashworth, C. S. and Pendergrast, R. A. and Litaker, M. and DuRant, Robert h.",
volume="24",
number="2",
pages="123-124",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0022-4375",
doi="",
url="http://dx.doi.org/"
}