@article{ref1,
title="Significant connections",
journal="Addiction",
year="1996",
author="Shepherd, Jonathan P.",
volume="91",
number="4",
pages="501-502",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2140",
doi="",
url="http://dx.doi.org/"
}