@article{ref1,
title="Risk-taking and drug dependence",
journal="British journal of addiction to alcohol and other drugs",
year="1976",
author="Booth, G. and Gossop, M.",
volume="71",
number="3",
pages="269-274",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}