1. German Paediatric Pain CentreChildren’s and Adolescents’ Hospital Datteln Germany
2. Department of Children’s Pain Therapy and Paediatric Palliative Care Faculty of Health School of Medicine Witten/Herdecke University Witten Germany
3. PedScience Research Institute Datteln Germany
4. Department of Psychosomatic Medicine and Psychotherapy Klinikum rechts der Isar School of Medicine Technical University of Munich Munich Germany
5. Department of Medical Psychology and Medical Sociology University of Leipzig Leipzig Germany
6. Clinic and Polyclinic for Psychosomatic Medicine and Psychotherapy University Medical Center Mainz Mainz Germany
7. Institute and Polyclinic of Primary Medical Care University Medical Centre Hamburg‐Eppendorf Hamburg Germany