@article{ref1,
title="Problem drinking; a follow-up study",
journal="AMA archives of industrial health",
year="1959",
author="Thorpe, J. J. and Perret, J. T.",
volume="19",
number="1",
pages="24-32",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0567-3933",
doi="",
url="http://dx.doi.org/"
}