@article{ref1,
title="Alcoholics' versus nonalcoholics' use of services of a health maintenance organization",
journal="Journal of studies on alcohol",
year="1981",
author="Roghmann, K. J. and Roberts, J. S. and Smith, T. S. and Wells, S. M. and Wersinger, R. P.",
volume="42",
number="3",
pages="312-322",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-882X",
doi="",
url="http://dx.doi.org/"
}