@article{ref1,
title="Ecstasy and related drugs in biological materials",
journal="Tidsskrift for den Norske Laegeforening",
year="1999",
author="Christophersen, Asbjørg S. and Smith-Kielland, A.",
volume="119",
number="5",
pages="702-702",
abstract="<p>[Abstract unavailable]</p><p>Language: no</p>",
language="no",
issn="0029-2001",
doi="",
url="http://dx.doi.org/"
}