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| Rank | Keyword | Centrality score |
|---|---|---|
| 1 | Ultrasonography | 0.24 |
| 2 | Thyroid gland | 0.16 |
| 3 | Elasticity | 0.13 |
| 4 | Carcinoma | 0.12 |
| 5 | Scintigraphy | 0.11 |
| 6 | Management | 0.10 |
| 7 | Diagnosis | 0.10 |
| 8 | Children | 0.10 |
| 9 | Disease | 0.08 |
| 10 | Nodule | 0.07 |
