Testosterone/Epitestosterone:MRto:Pt:Ser/Plas:Qn
testosterone/epitestosterone:mrto:pt:ser/plas:qn
Testosterone/Epitestosterone:Mass Ratio:To identify measures at a point in time:Serum/Plasma:Quantitative
testosterone/epitestosterone:mass ratio:to identify measures at a point in time:serum/plasma:quantitative