@article{ref1,
title="Youth violence prevention: the physician's role",
journal="JAMA journal of the American Medical Association",
year="2000",
author="Witwer, M. and Spivak, H. and Christoffel, Katherine Kaufer",
volume="283",
number="9",
pages="1202-1203",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}