@article{ref1,
title="Letter: Birth order and alcoholism",
journal="Quarterly journal of studies on alcohol",
year="1974",
author="de Lint, J.",
volume="35",
number="1 pt A",
pages="292-295",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-5649",
doi="",
url="http://dx.doi.org/"
}