Cortisol.free^PM trough specimen:MCnc:Pt:Ser/Plas:Qn
cortisol.free^pm trough specimen:mcnc:pt:ser/plas:qn
Cortisol.free^PM trough specimen:Mass Concentration:To identify measures at a point in time:Serum/Plasma:Quantitative
cortisol.free^pm trough specimen:mass concentration:to identify measures at a point in time:serum/plasma:quantitative