@article{ref1,
title="Alcohol and drugs",
journal="British medical journal: BMJ",
year="1992",
author="Farrell, M. and Strang, J.",
volume="304",
number="6825",
pages="489-491",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}