@article{ref1,
title="Gun control",
journal="CMAJ : Canadian Medical Association journal",
year="1979",
author="MacKay, J. S.",
volume="120",
number="6",
pages="640, 642-640, 642",
abstract="Abstract unavailable.",
language="",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}