@article{ref1,
title="Substance abuse and suicide risk among adolescents",
journal="European archives of psychiatry and clinical neuroscience",
year="2012",
author="",
volume="262",
number="6",
pages="469-485",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0940-1334",
doi="",
url="http://dx.doi.org/"
}