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  1. Attention-Deficit/Hyperactivity Disorder - National Institute of …

  2. Attention-deficit/hyperactivity disorder (ADHD) in children - Mayo Clinic

  3. Adult attention-deficit/hyperactivity disorder (ADHD) - Mayo …

  4. What is ADHD? | CDC

  5. Attention deficit hyperactivity disorder - Wikipedia

  6. Learn About Attention-Deficit / Hyperactivity Disorder (ADHD)

  7. Symptoms and Diagnosis of ADHD | CDC

  8. Attention Deficit Hyperactivity Disorder | National Institute of ...

  9. Adult attention-deficit/hyperactivity disorder (ADHD) - Mayo …

  10. Attention-Deficit/Hyperactivity Disorder (ADHD) - MSD Manuals