@article{ref1,
title="Trampoline injuries to the lower extremity. Two case reports",
journal="American journal of sports medicine",
year="1978",
author="Clare, P. E.",
volume="6",
number="3",
pages="141-142",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0363-5465",
doi="",
url="http://dx.doi.org/"
}