@article{ref1,
title="Symptoms associated with sleep apnea",
journal="Nihon Naika Gakkai Zasshi",
year="1994",
author="Horie, T. and Akashiba, T.",
volume="83",
number="9",
pages="1590-1594",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0021-5384",
doi="",
url="http://dx.doi.org/"
}