Thyroxine/Triiodothyronine uptake index:MRto:Pt:Ser/Plas:Qn
thyroxine/triiodothyronine uptake index:mrto:pt:ser/plas:qn
Thyroxine (T4)/Triiodothyronine (T3) uptake index [Mass Ratio] in Serum or Plasma
thyroxine (t4)/triiodothyronine (t3) uptake index [mass ratio] in serum or plasma