@article{ref1,
title="Gunshot wounds: bullet caliber is increasing",
journal="Journal of trauma",
year="1999",
author="D'Alessio, JG",
volume="47",
number="5",
pages="992-993",
abstract="Abstract unavailable.",
language="",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}