@article{ref1,
title="Abuse of drugs. How do we learn about its occurrence?",
journal="Tidsskrift for den Norske Laegeforening",
year="1966",
author="Naess, K.",
volume="86",
number="10",
pages="804-805",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}