1. Department of Oncology, Hematology, BMT with Section Pneumology, Hubertus Wald Tumor Center, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Department of Pediatric Hematology and Oncology, Hubertus Wald Tumor Center, University Cancer Center Hamburg, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Department for Medical Psychology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
4. Institute for Medical Psychology, Greifswald University Medicine, Greifswald, Germany
5. Institute of Medical Biometry and Epidemiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
6. Faculty of Agriculture and Food Sciences, University of Applied Sciences, Neubrandenburg, Germany
7. Department I of Internal Medicine, Center for Integrated Oncology Aachen Bonn Cologne Dusseldorf, University Hospital of Cologne, Cologne, Germany
8. Institute for Medical Biostatistics, Epidemiology and Informatics, Division of Epidemiology and Health Services Research, University Medical Centre, Johannes Gutenberg University, Mainz, Germany
9. Institute of Human Movement Science, Faculty of Psychology and Human Movement, University of Hamburg, Hamburg, Germany
10. Clinic for Pediatrics III, Department of Pediatric Hematology/Oncology, West German Cancer Centre, University Hospital Essen, Essen, Germany
11. Department of Pediatric Hematology and Oncology, University Hospital Bonn, Venusberg Campus 1, Bonn, Germany
12. Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Cancer Center, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
13. Pediatric Oncology and Palliative Care Section, University Medicine Rostock, Childrens' and Adolescents Hospital Rostock, Rostock, Germany
14. Department of Internal Medicine I, University Hospital of Schleswig-Holstein, Campus Lübeck, Lübeck, Germany
15. Klinik für Innere Medizin II, Abteilung für Hämatologie und Internistische Onkologie, Universitätsklinikum Jena, Am Klinikum 1, Jena, Deutschland
16. Department of Hematology and Oncology, University Hospital Magdeburg, Magdeburg, Germany
17. Specialty Practice for Psycho-Oncology, Magdeburg, Germany
18. Department of Pediatric Hematology and Oncology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
19. Pediatric Hematology and Oncology, University Children´s Hospital Muenster, Albert-Schweitzer Campus 1, Muenster, Germany
20. Pediatric Hematology and Oncology, Hannover Medical School, Hannover, Germany
21. Institute of Clinical Epidemiology and Biometry, Julius-Maximilians-Universität Würzburg, CCC WERA, University Hospital Würzburg, Würzburg, Germany
22. Department of Pediatric Hematology, Oncology & Immunology, Olgahospital, Klinikum Stuttgart, Stuttgart, Germany
23. Pediatric Hematology and Oncology, Department of Pediatrics, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
24. IT Center for Clinical Research, Universität zu Lübeck, Lübeck, Germany