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Definition PIND.
| Children aged 0−18 years at onset of symptoms who fulfill the following criteria: |
|---|
| • Progressive deterioration during 3 months |
| • Loss of already attained intellectual or developmental abilities |
| • Development of neurological signs including epilepsy |
| • No (static) loss of skill due to: |
| - Encephalitis |
| - Head injury |
| - Near drowning |
