@article{ref1,
title="Gun injury prevention comes of age",
journal="Journal of trauma",
year="2002",
author="Longjohn, M. M. and Christoffel, Katherine Kaufer",
volume="53",
number="2",
pages="213-218",
abstract="Abstract unavailable.",
language="",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}