@article{ref1,
title="Dangerous liaisons: combinations that kill",
journal="Journal of American college health",
year="1999",
author="Keeling, R. P.",
volume="47",
number="4",
pages="147-150",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0744-8481",
doi="10.1080/07448489909595639",
url="http://dx.doi.org/10.1080/07448489909595639"
}