11-Deoxycortisol/Cortisol:MRto:Pt:Ser/Plas:Qn
11-deoxycortisol/cortisol:mrto:pt:ser/plas:qn
11-Deoxycortisol/Cortisol [Mass Ratio] in Serum or Plasma
11-deoxycortisol/cortisol [mass ratio] in serum or plasma