1. Department of General Pediatrics, Hematology, Oncology, University Children’s Hospital Tübingen, Hoppe-Seyler-Str. 1, Tübingen 72076, Germany
2. Clinical Psychology and Psychotherapy, University of Tübingen, Schleichstr. 4, Tübingen 72076, Germany
3. TAKT-Tübinger Akademie für Kinder-und Jugendlichenpsychotherapie GmbH, Reutlinger Straße 6, Tübingen 72072, Germany