Cortisol.free/Cortisol.total:MFr:Pt:Ser/Plas:Qn
cortisol.free/cortisol.total:mfr:pt:ser/plas:qn
Cortisol.free/Cortisol.total:Mass Fraction:To identify measures at a point in time:Serum/Plasma:Quantitative
cortisol.free/cortisol.total:mass fraction:to identify measures at a point in time:serum/plasma:quantitative