Conference ProceedingsA Field Performance of the DrugTest 5000® and DDS®2 Onsite Oral Fluid (OF) Devices by Oregon and Vermont Drug Recognition Experts (DREs)Presenting section:Toxicology2018Huestis, Marilyn A., Severna Park MD; Mohr, Amanda L.A., Willow Grove PA; Krotulski, Alex J., Willow Grove PA; Logan, Barry K., Horsham PAView the paperToxicology