1. Department of Medical Psychology, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Center for Research Ethics and Bioethics, Uppsala University, Uppsala, Sweden
3. Department of Psychological Sciences, Case Western Reserve University, Cleveland, OH, USA
4. Research Section “Child Public Health”, Department of Child and Adolescent Psychiatry and Psychotherapy, Center for Psychosocial Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
5. Department of Pediatric Hematology and Oncology, Center for Obstetrics and Pediatrics, University Center Hamburg-Eppendorf, Hamburg, Germany
6. Department of Neuroscience, Section of Physiotherapy, Uppsala University, Uppsala, Sweden