Euthyroid sick syndrome and free thyroxine assay.
D006801:Humans; D007037:Hypothyroidism / Q000175:diagnosis*; D011485:Protein Binding; D011933:Reagent Kits, Diagnostic / Q000592:standards; D013960:Thyroid Function Tests / Q000379:methods*; D013974:Thyroxine / Q000031:analogs & derivatives / Q000097:blood*
D011933:Reagent Kits, Diagnostic; D013974:Thyroxine