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PI changes pre‐ and post‐ADHD treatment. Compared PI change with pre‐ and post‐ADHD treatment in all cases (A), in divided group MPH and ATX (B). No significant differences were seen. The cross marker showed average value. ADHD, attention‐deficit hyperactivity disorder; ATX, atomoxetine; MPH, methylphenidate; PI, paroxysmal index
