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van der Meulen, Emma M.; Bakker, Steven C.; Pauls, David L.; Oteman, Nicole; Kruitwagen, Cas L. J. J.; Pearson, Peter L.; Sinke, Richard J.; Buitelaar, Jan K. – Journal of Child Psychology and Psychiatry, 2005
Background: A minority of patients with attention-deficit hyperactivity disorder (ADHD) do not respond favorably to methylphenidate. This has been partially associated with homozygosity for the Dopamine transporter (DAT1) 10-repeat allele and the presence of one or two Dopamine D4 receptor (DRD4) 7-repeat alleles. This study examined the sibling…
Descriptors: Foreign Countries, Children, Attention Deficit Hyperactivity Disorder, Siblings