biblio.ugent.be The UGent Institutional Repository is the electronic archiving and dissemination platform for all UGent research publications. Ghent University has implemented a mandate stipulating that all academic publications of UGent researchers should be deposited and archived in this repository. Except for items where current copyright restrictions apply, these papers are available in Open Access. This item is the archived peer‐reviewed author‐version of: Relationship between oral fluid and blood concentrations of drugs of abuse in drivers suspected of DUID Sarah MR Wille1, PhD; Elke Raes2, MS; Pirjo Lillsunde3, PhD; Teemu Gunnar3, PhD; Marleen Laloup1, PhD; Nele Samyn1, PhD; Asbjørg S Christophersen4, Prof; Manfred R Moeller5, Prof; Karin P Hammer5, MS; Alain G Verstraete2*, Prof Ther Drug Monit. 2009 Aug;31(4):511‐9. To refer to or to cite this work, please use the citation to the published version: Wille SM, Raes E, Lillsunde P, Gunnar T, Laloup M, Samyn N, Christophersen AS, Moeller MR, Hammer KP, Verstraete AG. Relationship between oral fluid and blood concentrations of drugs of abuse in drivers suspected of driving under the influence of drugs. Ther Drug Monit. 2009 Aug;31(4):511‐9, DOI: 10.1097/FTD.0b013e3181ae46ea.