thyroidectomy 14 animal experiment 12 nonhuman 12 rat 12 Animal 8 Rats 8 Support, Non-U.S. Gov't 8 liothyronine 8 Thyroidectomy 7 Male 6 Rats, Inbred Strains 6 Triiodothyronine 6 article 6 controlled study 6 5-Aminolevulinate Synthetase 4 Cytochrome P-450 Enzyme System 4 Female 4 Hexachlorobenzene 4 Liver 4 Thyroxine 4 animal cell 4 animal model 4 endocrine system 4 enzyme activity 4 hexachlorobenzene 4 hypothyroidism 4 intraperitoneal drug administration 4 male 4 priority journal 4 thyrotropin 4