Propoxyphene+Norpropoxyphene:PrThr:Pt:Urine:Ord:Screen
propoxyphene+norpropoxyphene:prthr:pt:urine:ord:screen
Propoxyphene + Norpropoxyphene [Presence] in Urine by Screen method
propoxyphene + norpropoxyphene [presence] in urine by screen method