title: Low serum L-T3 levels in the elderly sick: protein binding, thyroid and pituitary responsiveness, and reverse T3 concentrations.
mesh_terms: D000368:Aged; D006801:Humans; D007536:Isomerism; D010902:Pituitary Gland / Q000187:drug effects*; D011485:Protein Binding; D013961:Thyroid Gland / Q000187:drug effects / Q000378:metabolism*; D013972:Thyrotropin / Q000494:pharmacology; D013973:Thyrotropin-Releasing Hormone / Q000494:pharmacology; D013974:Thyroxine / Q000097:blood; D013975:Thyroxine-Binding Proteins / Q000032:analysis; D014284:Triiodothyronine / Q000097:blood*
chemical_list: D013975:Thyroxine-Binding Proteins; D014284:Triiodothyronine; D013973:Thyrotropin-Releasing Hormone; D013972:Thyrotropin; D013974:Thyroxine