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Geneticists Find Location of Major Gene in ADHD; Also Linked to Autism

Researchers in Los Angeles have localized a region on chromosome 16 that is likely to contain a risk gene for Attention Deficit Hyperactivity Disorder, the most prevalent childhood-onset psychiatric disorder. The scientists say their finding suggest that the suspected risk gene may contribute as much as 30 percent of the underlying genetic cause of ADHD and may also be involved in a separate childhood onset disorder, autism.