Fentanyl & Norfentanyl panel:-:Pt:Bld:-:LC/MS/MS
fentanyl & norfentanyl panel:-:pt:bld:-:lc/ms/ms
Fentanyl & Norfentanyl panel:-:To identify measures at a point in time:Whole blood:-:LC/MS/MS
fentanyl & norfentanyl panel:-:to identify measures at a point in time:whole blood:-:lc/ms/ms