Thyroxine.free^baseline:ACnc:Pt:Ser/Plas:Qn
thyroxine.free^baseline:acnc:pt:ser/plas:qn
Thyroxine.free^baseline:Arbitrary concentration:To identify measures at a point in time:Serum/Plasma:Quantitative
thyroxine.free^baseline:arbitrary concentration:to identify measures at a point in time:serum/plasma:quantitative