The role of the gastrointestinal tract, including the liver, in the metabolism of radiothyroxine.
D041981:Gastrointestinal Tract; D008099:Liver / Q000378:metabolism*; D013974:Thyroxine / Q000378:metabolism*
D013974:Thyroxine
GASTROINTESTINAL SYSTEM; LIVER/metabolism; THYROXIN/metabolism