1. Research Unit for Child and Adolescent Psychiatry, Psychiatric Hospital; Aalborg University Hospital; Aalborg Denmark
2. Clinical Psychology and Epidemiology; Institute of Psychology, University of Basel; Switzerland
3. Department of Child and Adolescent Psychiatry; University of Zurich; Switzerland
4. Institute of Biological Psychiatry; Psychiatric Centre St. Hans; Roskilde Denmark
5. Department M; Aarhus University Hospital; Risskov Denmark
6. Department of Psychiatry and Biobehavioral Sciences and Semel Institute for Neuroscience and Human Behavior; David Geffen School of Medicine at UCLA; Los Angeles California