@article{ref1,
title="Epidemiology and prevention of adolescent injury. a review and research agenda",
journal="JAMA journal of the American Medical Association",
year="1989",
author="Gerken, E. A. and Runyan, Carol S. Wolf",
volume="262",
number="16",
pages="2273-2279",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}