@article{ref1,
title="A further comparison of cannabis (marijuana) users and non-users",
journal="British journal of addiction to alcohol and other drugs",
year="1976",
author="Wells, B. and Stacey, B.",
volume="71",
number="2",
pages="161-165",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0890",
doi="",
url="http://dx.doi.org/"
}