Acknowledgements
The authors thank all of the children, adolescents, and parents who participated for their contributions to this study. They also thank Peter Ericson, Head of Child and Adolescent Psychiatry, South Region, Stockholm County Council; Karin Sigward, Head of the Department of Child and Adolescent Psychiatry in Södertälje; and Gunilla Keith Bodros, Head of the Asperger Center, Stockholm County Council.
Sven Bölte was supported by the Swedish Research Council (523-2009-7054).