Josep Antoni Ramos-Quiroga,  Laura Prats Torres, Jesús Pérez-Pazos and Pablo José Chalita Pérez Tagle
    Attention deficit hyperactivity disorder  (ADHD) is a neurodevelopmental disorder  characterised by inattention, hyperactivity  and impulsivity – symptoms that arise during  childhood and frequently persist across development, resulting in impairment in multiple  domains of adaptive functioning. Epidemiological studies estimate the prevalence  in children to be 3–10%. 
    
    
    ADHD in practice 2012; 4(2): 18–22
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