@article{ref1,
title="Depression and drug addiction",
journal="Psychiatric quarterly",
year="1974",
author="Robbins, P. R.",
volume="48",
number="3",
pages="374-386",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2720",
doi="",
url="http://dx.doi.org/"
}