Thyroid Hormone Receptors betaReceptors, Thyroid HormoneThyroid Hormone Resistance SyndromeThyroid HormonesTriiodothyronineThyroid Hormone Receptors alphaThyroid GlandIodide PeroxidaseRetinoid X ReceptorsMolecular Sequence DataBase SequenceMutationTranscription FactorsGene Expression RegulationThyroxineThyroid NeoplasmsTranscription, GeneticRNA, MessengerEstrogen Receptor betaNuclear Receptor Co-Repressor 2Promoter Regions, GeneticReceptors, Retinoic AcidHypothyroidismOncogene Proteins v-erbAThyroid DiseasesNuclear Receptor Co-Repressor 1ThyrotropinMetamorphosis, BiologicalGenes, erbAHyperthyroidismTriiodothyronine, ReverseThyroid Function TestsReverse Transcriptase Polymerase Chain ReactionReceptors, Cytoplasmic and NuclearHormonesThyrotropin, beta SubunitDrug Resistance