@article{ref1,
title="Physicians and driver's license",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1992",
author="Huupponen, P.",
volume="108",
number="4",
pages="421-421",
abstract="Abstract unavailable.",
language="",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}