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Comparison of free thyroxin levels before, 7 d after, and 30 d after treatment
| FT4 (pmol/L) | Preoperative | 7 d after surgery | 30 d after surgery |
| Microwave ablation group | 12.33 ± 1.51 | 12.87 ± 2.66 | 12.67 ± 2.83 |
| Surgery group | 12.72 ± 1.68 | 10.77 ± 2.25 | 9.45 ± 2.07 |
Fintra-group = 0.866, Pintra-group = 0.221; Finter-group = 9.257, Pinter-group = 0.000; Finteraction = 31.378, Pinteraction = 0.000. FT4: Free thyroxin.
