@article{ref1,
title="Traffic and chronic illness",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1984",
author="Laaksonen, H. and Seppala, P.",
volume="100",
number="19",
pages="1209-1219",
abstract="Abstract unavailable.",
language="",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}