@article{ref1,
title="Strongly increased incidence of trampoline-induced injuries",
journal="Lakartidningen",
year="2007",
author="Bjornstig, Johanna and Björnstig, U.",
volume="104",
number="6",
pages="421-423",
abstract="<p>[Abstract unavailable]</p> <p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}