@article{ref1,
title="Commotio cordis: sudden death due to chest wall impact in sports",
journal="Heart",
year="1999",
author="Link, M. S.",
volume="81",
number="2",
pages="109-110",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1355-6037",
doi="",
url="http://dx.doi.org/"
}