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Attention deficit disorder with or without hyperactivity
Attention deficit disorder (ADD) with or without hyperactivity is a neurobiological condition that affects 5 to 9% of school-age children and 2 to 5% of adults.

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Attention deficit disorder (ADHD)

Attention deficit disorder with or without hyperactivity (ADHD) worries many parents, especially at back-to-school time when their children’s behavior and academic performance are closely scrutinized. 
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