2-Hydroxyethylflurazepam:PrThr:Pt:Urine:Ord:Screen
2-hydroxyethylflurazepam:prthr:pt:urine:ord:screen
2-Hydroxyethylflurazepam [Presence] in Urine by Screen method
2-hydroxyethylflurazepam [presence] in urine by screen method