@article{ref1,
title="Medical examination for elderly drivers",
journal="British medical journal: BMJ",
year="1979",
author="Greaves, J. R.",
volume="2",
number="6199",
pages="1226-1227",
abstract="Abstract unavailable.",
language="",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}