@article{ref1,
title="Oral fluid testing: promises and pitfalls",
journal="Clinical chemistry",
year="2011",
author="Huestis, Marilyn A. and Verstraete, Alain and Kwong, Tai C. and Morland, Jorg and Vincent, Michael J. and de la Torre, Raphael",
volume="57",
number="6",
pages="805-810",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0009-9147",
doi="10.1373/clinchem.2010.152124",
url="http://dx.doi.org/10.1373/clinchem.2010.152124"
}