| AITD | autoimmune thyroid disease |
| aTg | thyroglobulin antibodies |
| aTPO | thyroid peroxidase antibodies |
| CRP | C reactive protein |
| ECLIA | electrochemiluminescence immunoassay |
| ESR | erythrocyte sedimentation rate |
| FNAB | fine needle aspiration biopsy |
| FT3 | free triiodothyronine |
| FT4 | free thyroxine |
| HLA | human leukocyte antigens |
| MHC | major histocompatibility complex |
| NRG | non-recurrence group |
| RG | recurrence group |
| SAT | subacute thyroiditis |
| TRAb | thyrotropin receptor antibodies |
| TSH | thyrotropin |
| US | ultrasound |
| WBC | white blood count |
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