@article{ref1,
title="Risk of suicide in bipolar disorder is least with lithium",
journal="British medical journal: BMJ",
year="2004",
author="",
volume="328",
number="7436",
pages="-",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="10.1136/bmj.328.7436.0-e",
url="http://dx.doi.org/10.1136/bmj.328.7436.0-e"
}