@article{ref1,
title="Traffic accidents and the world health",
journal="Lakartidningen",
year="1977",
author="Hansson, P. G.",
volume="74",
number="43",
pages="3726-3727",
abstract="Abstract unavailable.",
language="",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}