1. Research Unit Child and Adolescent Mental Health Center Copenhagen University Hospital—Mental Health Services CPH Copenhagen Denmark
2. Department of Clinical Medicine Faculty of Health University of Copenhagen Copenhagen Denmark
3. Copenhagen Trial Unit Centre for Clinical Intervention Research The Capital Region Copenhagen University Hospital—Rigshospitalet Copenhagen Denmark
4. Department of Neuroanaesthesiology Neuroscience Centre Copenhagen University Hospital—Rigshospitalet Copenhagen Denmark
5. Department of Regional Health Research The Faculty of Health Sciences University of Southern Denmark Odense Denmark
6. Department of Communication and Psychology Aalborg University Aalborg Denmark
7. Team of Self‐Injury Child and Adolescent Mental Health Services Copenhagen Denmark
8. Department of Clinical Neuroscience Centre for Psychiatry Research Karolinska Institutet, & Stockholm Health Care Services Region Stockholm Stockholm Sweden
9. Department of Psychology Stanford University Stanford California USA