@article{ref1,
title="Articles on statistical techniques are much needed",
journal="Addiction",
year="2001",
author="Maxwell, J. C.",
volume="96",
number="11",
pages="1680-1680",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2140",
doi="",
url="http://dx.doi.org/"
}