@article{ref1,
title="Weighting for populations at risk and standardizing for age in alcohol research",
journal="Journal of studies on alcohol",
year="1981",
author="Hyman, M. M.",
volume="42",
number="7",
pages="579-593",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-882X",
doi="",
url="http://dx.doi.org/"
}