CRP and thyrotoxicosis: Therefore, we aimed to perform differential diagnoses of thyrotoxicosis using a machine learning algorithm with initial laboratory findings, including triiodothyronine (T3), free thyroxine (FT4), T3 to FT4 ratio, erythrocyte sediment rate (ESR), C-reactive protein (CRP), and the results of thyroid autoantibodies-thyrotropin binding inhibitory immunoglobulin (TBII), thyroid-stimulating immunoglobulin (TSI), anti-thyroid peroxidase antibody (TPOAb), and anti-thyroglobulin antibody (TgAb).