@article{ref1,
title="Recreational illicit drug use",
journal="Texas dental journal",
year="2007",
author="Sands, Tim D.",
volume="124",
number="6",
pages="594-599",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0040-4284",
doi="",
url="http://dx.doi.org/"
}