@article{ref1,
title="Can harm ratings be useful?",
journal="Addiction",
year="2011",
author="Rossow, Ingeborg",
volume="106",
number="11",
pages="1893-1894",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0965-2140",
doi="10.1111/j.1360-0443.2011.03535.x",
url="http://dx.doi.org/10.1111/j.1360-0443.2011.03535.x"
}