Validity of oral fluid test for Delta-9-tetrahydrocannabinol in drivers using the 2013 National Roadside Survey Data.
Huiyan JinSharifa Z WilliamsStanford T ChihuriGuohua LiQixuan ChenPublished in: Injury epidemiology (2018)
The oral fluid test is a highly valid method for detecting the presence of THC in the blood but cannot be used to accurately measure the blood THC concentration.