@article{ref1,
title="The rise (and fall?) of drug discrimination research",
journal="Drug and alcohol dependence",
year="2015",
author="McMahon, Lance R.",
volume="151",
number="",
pages="284-288",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0376-8716",
doi="",
url="http://dx.doi.org/"
}