@article{ref1,
title="HIV-infected intravenous drug users in methadone maintenance treatment: Clinical problems and their management",
journal="Journal of psychoactive drugs",
year="1991",
author="Ferrando, Stephen J. and Batki, Steven L.",
volume="23",
number="2",
pages="217-224",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0279-1072",
doi="10.1080/02791072.1991.10472238",
url="http://dx.doi.org/10.1080/02791072.1991.10472238"
}