1. Department of Special Education, Stockholm University, Stockholm, Sweden
2. Department of Psychology, Stockholm University, Stockholm, Sweden
3. Karolinska Institutet Center of Neurodevelopmental Disorders (KIND), Centre for Psychiatry Research, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm Health Care Services, Region Stockholm, CAP Research Centre, Stockholm, Sweden
4. Autism Center for Young Children, Habilitation & Health, Stockholm County Council, Stockholm, Sweden
5. Frank Porter Graham Child Development Institute, University of North Carolina at Chapel Hill, Chapel Hill, USA
6. Child and Adolescent Psychiatry, Stockholm County Council, Stockholm, Sweden
7. Curtin Autism Research Group, School of Occupational Therapy, Social Work and Speech Pathology, Curtin University, Perth, Australia