1. Department of Psychiatry and Psychotherapy Faculty of Medicine Technische Universität Dresden Dresden Germany
2. Department of Paediatric Oncology, Haematology and Haemostaseology Leipzig University Leipzig Germany
3. Sonnenstrahl e.V. Dresden – Förderkreis für krebskranke Kinder und Jugendliche Dresden Germany
4. Elternhilfe für krebskranke Kinder Leipzig e.V. Leipzig Germany
5. Department of Paediatrics, Paediatric Haematology and Oncology University Hospital Carl Gustav Carus Dresden Dresden Germany
6. Department of Paediatric and Adolescent Medicine Medical University Vienna Vienna Austria
7. Faculty of Medicine Technische Universität Dresden Dresden Germany