Determination of Δ9-tetrahydrocannabinolic acid A (Δ9-THCA-A) in whole blood and plasma by LC-MS/MS and application in authentic samples from drivers suspected of driving under the influence of cannabis. Επικοινωνία Submitted by Δημήτρης Σπάχος on Πέμ, 04/21/2016 - 11:33