Chunk #17 — DISCUSSION

Source

Familiality of Tourette syndrome, obsessive-compulsive disorder, and attention-deficit/hyperactivity disorder: heritability analysis in a large sib-pair sample.

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This study attempts to further elucidate the familial relationships between TS, OCD, and ADHD in a large sample of TS-affected sib pair families. Our results demonstrate not only the independent familiality and heritability patterns of the two main TS-associated disorders, OCD and ADHD, but also further elucidate the genetic and environmental relationships between these disorders and TS.