@article{ref1,
title="Extended family ties among alcoholics: a neglected area of research",
journal="Quarterly journal of studies on alcohol",
year="1972",
author="Hyman, M. M.",
volume="33",
number="2",
pages="513-516",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}