@article{ref1,
title="Gun control",
journal="CMAJ : Canadian Medical Association journal",
year="1979",
author="Sim, M.",
volume="120",
number="4",
pages="408, 411-408, 411",
abstract="Abstract unavailable.",
language="",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}