@article{ref1,
title="Arthrosis of the hip and knee. Heredity, sports and overweight are usually more hazardous than work",
journal="Lakartidningen",
year="1995",
author="Zetterberg, C. and Hansson, Tommy",
volume="92",
number="22",
pages="2307-2310",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}