@article{ref1,
title="Retention issues involving drug-abusing women in treatment research",
journal="NIDA research monograph",
year="1996",
author="Lewis, R. A. and Haller, D. L. and Branch, D. and Ingersoll, K. S.",
volume="166",
number="",
pages="110-122",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1046-9516",
doi="",
url="http://dx.doi.org/"
}