About the Authors

Lars Clemmensen

lars.clemmensen@regionh.dk

Affiliation Child and Adolescent Mental Health Center, Mental Health Services, the Capital Region of Denmark, Copenhagen, Denmark

Jim van Os

Affiliation Department of Psychiatry and Psychology, Maastricht University Medical Centre, Maastricht, The Netherlands

Anne Mette Skovgaard

Affiliation Department of Public Health, University of Copenhagen, Copenhagen, Denmark

Mette Væver

Affiliation Department of Psychology, University of Copenhagen, Copenhagen, Denmark

Els M. A. Blijd-Hoogewys

Affiliation INTER-PSY Groningen, Groningen, The Netherlands

Agna A. Bartels-Velthuis

Affiliation University of Groningen, University Medical Center Groningen, University Center for Psychiatry Groningen, Groningen Triadegebouw, The Netherlands

Pia Jeppesen

Affiliation Child and Adolescent Mental Health Center, Mental Health Services, the Capital Region of Denmark, Copenhagen, Denmark

Competing Interests

INTER-PSY is an outpatient clinic for mental health care services, which employs 160 professionals (psychiatrist, psychologists and social workers). Els Blijd-Hoogewys, Ph.D., is a certified clinical psychologist and psychotherapist working at this centre. She is director of the Autism Team. There are no competing interests, financial gains, patents, marketed products, etc. involved concerning the topic of this article. This does not alter the authors' adherence to PLOS ONE Editorial policies and criteria.

Author Contributions

Conceived and designed the experiments: PJ AB EB AMS. Performed the experiments: LC. Analyzed the data: LC PJ JvO MV. Contributed reagents/materials/analysis tools: AB EB. Wrote the paper: LC PJ JvO AB MV AMS EB.