@article{ref1,
title="Problems with the trampoline: I. Too many cases of permanent paralysis",
journal="Pediatric annals",
year="1978",
author="Kravitz, H.",
volume="7",
number="10",
pages="728-729",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-4481",
doi="",
url="http://dx.doi.org/"
}