@article{ref1,
title="Trampoline-jump can cause serious injuries",
journal="Lakartidningen",
year="1970",
author="Frykman, G. and Hilding, S.",
volume="67",
number="50",
pages="5862-5864",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}