Methadone+Metabolite:PrThr:Pt:Ser/Plas/Bld:Ord:Screen
methadone+metabolite:prthr:pt:ser/plas/bld:ord:screen
Methadone+Metabolite [Presence] in Serum, Plasma or Blood by Screen method
methadone+metabolite [presence] in serum, plasma or blood by screen method