Tetrahydrocannabinol:PrThr:Pt:Urine:Ord:SAMHSA screen
tetrahydrocannabinol:prthr:pt:urine:ord:samhsa screen
Tetrahydrocannabinol [Presence] in Urine by SAMHSA screen method
tetrahydrocannabinol [presence] in urine by samhsa screen method