@article{ref1,
title="Alcohol use by narcotic addicts in methadone maintenance treatment",
journal="Quarterly journal of studies on alcohol",
year="1973",
author="Schut, J. and File, K. and Wohlmuth, T.",
volume="34",
number="4",
pages="1356-1359",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}