Thyroxine^4H post dose levothyroxine:MCnc:Pt:Ser/Plas:Qn
thyroxine^4h post dose levothyroxine:mcnc:pt:ser/plas:qn
Thyroxine (T4) [Mass/volume] in Serum or Plasma --4 hours post dose levothyroxine
thyroxine (t4) [mass/volume] in serum or plasma --4 hours post dose levothyroxine