@article{ref1,
title="ABO blood groups and ABH substance secretion in alcoholics",
journal="Quarterly journal of studies on alcohol",
year="1973",
author="Swinson, R. P. and Madden, J. S.",
volume="34",
number="1",
pages="64-70",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}