Fentanyl & Norfentanyl panel:-:Pt:Gast fld:-
fentanyl & norfentanyl panel:-:pt:gast fld:-
Fentanyl & Norfentanyl panel:-:To identify measures at a point in time:Gastric fluid/contents:-
fentanyl & norfentanyl panel:-:to identify measures at a point in time:gastric fluid/contents:-