1. Children’s Hospital, University Hospital, Philipps University of Marburg , Marburg , Germany
2. Department of Clinical Psychology and Psychotherapy , Philipps University of Marburg , Marburg , Germany
3. Children’s Hospital, Hospital Bad Hersfeld GmbH , Bad Hersfeld , Germany
4. Children’s Hospital, Carl-Thiem-Hospital , Cottbus , Germany
5. Faculty of Medicine , Deans Office, Research Group Medical Ethics, Philipps University of Marburg , Marburg , Germany