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Free triiodothyronine levels between the two groups before, 7 d after, and 30 d after treatment
| FT3 (pmol/L) | Preoperative | 7 d after surgery | 30 d after surgery |
| Microwave ablation group | 4.28 ± 0.49 | 4.25 ± 0.45 | 4.22 ± 0.53 |
| Surgery group | 4.33 ± 0.78 | 3.09 ± 0.64 | 2.78 ± 0.84 |
Fintra-group = 6.435, Pintra-group = 0.000; Finter-group = 8.546, Pinter-group = 0.000; Finteraction = 45.291, Pinteraction = 0.000. FT3: Free triiodothyronine.
