@article{ref1,
title="Pick your poison: not all opioids are created equal in the eyes of dopamine (Commentary on Vander Weele et al.)",
journal="European journal of neuroscience",
year="2014",
author="Covey, Dan P. and Cheer, Joseph F.",
volume="40",
number="7",
pages="3040-3040",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0953-816X",
doi="10.1111/ejn.12726",
url="http://dx.doi.org/10.1111/ejn.12726"
}