extend to the more complex phenotype of TS+OCD+ADHD, which is highly heritable, and may in fact be an appropriate alternate phenotype for genetic studies. On the clinical side, the association between maternal ADHD and offspring ADHD and/or OCD is of particular interest, particularly when counseling TS-affected families about potential risks to offspring. However, these results are preliminary, and the complex relationship between these disorders requires further investigation to have clear clinical relevance.
