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Fig. 1 | BMC Psychiatry

Fig. 1

From: Regional brain volume predicts response to methylphenidate treatment in individuals with ADHD

Fig. 1

Flow diagram of the procedure. One hundred and forty ADHD participants without previous drug exposure were enrolled initially. Nineteen participants were excluded due to poor quality of T1-weighted images, and 42 individuals were excluded due to comorbidity, received no medication or treatment with atomoxetine, diagnosed with the major psychiatric disorders later, or had the loss to follow-up at the clinic within one month. The final sample of 79 medication-naïve participants with ADHD was divided into good responder group and poor responder groups based on the Clinical Global Impressions–Improvement Scale and then proceeded with further image analysis

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