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Paediatric subgroups and ages
| Paediatric subgroup | Approximate age range |
|---|---|
| Newborn (neonate) | Birth to 1 month of age |
| Infant | Greater than 1 month, but 2 years or less |
| Child | Greater than 2 years, but 12 years or less |
| Adolescent | Greater than 12 years, but less than 21 years |
