Thyroxine uptake &#x7C; Serum or Plasma &#x7C; Chemistry - challenge
thyroxine uptake &#x7c; serum or plasma &#x7c; chemistry - challenge
Thyroxine uptake &#x7C; Serum or Plasma &#x7C; Chemistry - challenge
thyroxine uptake &#x7c; serum or plasma &#x7c; chemistry - challenge