Tetrahydrocannabinol cutoff:MCnc:Pt:Urine:Qn:Confirm
tetrahydrocannabinol cutoff:mcnc:pt:urine:qn:confirm
Tetrahydrocannabinol cutoff [Mass/volume] in Urine for Confirmatory method
tetrahydrocannabinol cutoff [mass/volume] in urine for confirmatory method