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Nigg, Joel T.; Nikolas, Molly; Mark Knottnerus, G.; Cavanagh, Kevin; Friderici, Karen – Journal of Child Psychology and Psychiatry, 2010
Background: Recent studies have suggested that child attention-deficit/hyperactivity disorder (ADHD) and its symptom domains are related to blood lead level, even at background exposure levels typical in western countries. However, recent studies disagreed as to whether lead was related to inattention or hyperactivity-impulsivity within the ADHD…
Descriptors: Disability Identification, Attention Deficit Hyperactivity Disorder, Parents, Foreign Countries