@article{ref1,
title="Sudden death during sports events",
journal="Nihon Naika Gakkai Zasshi",
year="1998",
author="Takada, H. and Murayama, M.",
volume="87",
number="1",
pages="77-82",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0021-5384",
doi="",
url="http://dx.doi.org/"
}