@article{ref1,
title="Sudden death in Air Force recruits",
journal="Military medicine",
year="1990",
author="Kollef, M. H.",
volume="155",
number="3",
pages="A7-A7",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}