Table 2.
Incidence rates of head and neck anomalies among the whole live births per year
| Years | Incidence rate (%) |
|---|---|
| 1432 | 1.27 |
| 1433 | 3.71 |
| 1434 | 3.44 |
| 1435 | 7.1 |
| 1436 | 2.07 |
| 1437 | 1.34 |
| 1438 | 2.06 |
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