@article{ref1,
title="As nation grows older, traffic safety officials confront questions of who should drive",
journal="JAMA journal of the American Medical Association",
year="1992",
author="Gunby, P.",
volume="268",
number="3",
pages="307-308",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}