1. Department of Psychoanalysis and Psychotherapy, Medical University Vienna, Vienna, Austria
2. Center of Mental Health, Hospital for Addiction and Addictive Behavior, Hospital Stuttgart, Stuttgart, Germany
3. I. Medical Clinic, General Hospital Passau, Passau, Germany
4. Department of Psychiatry, Medical Science Division, University of Oxford, Oxford, UK
5. Department of Child and Adolescent Psychiatry, Medical University Vienna, Vienna, Austria
6. Department of Child and Adolescent Psychiatry and Psychotherapy, University of Ulm, Ulm, Germany
7. Department of Psychiatry, Blekinge Hospital, Karlshamn, Sweden