1. Department of Psychosomatic Medicine and Psychotherapy Friedrich‐Alexander‐University Erlangen‐Nürnberg University Hospital of Erlangen Erlangen Germany
2. Clinic for Psychosomatic Medicine and Psychotherapy Medical Center Freiburg Faculty of Medicine University Freiburg in Cooperation with Outpatient Support for Cancer Patients Comprehensive Cancer Center Freiburg Freiburg Germany
3. Department of Medical Psychology University Medical Center Hamburg‐Eppendorf Center for Psychosocial Medicine Hamburg Germany
4. Department of Medical Psychology and Psychotherapy Comprehensive Cancer Center Mainfranken University of Würzburg Würzburg Germany
5. University of Bonn Clinic for Psychosomatic Medicine and Psychotherapy Bonn Germany
6. Charité Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität and Berlin Institute of Health Berlin Germany
7. Ulm University Clinic Department of Psychosomatic Medicine and Psychotherapy Comprehensive Cancer Center Ulm (CCCU) Ulm Germany
8. Comprehensive Cancer Center University Clinic Center Dresden Dresden Germany
9. Department of General Internal Medicine and Psychosomatics Medical University Hospital Heidelberg Heidelberg Germany
10. Department of Psychosomatics and Psychotherapy University of Cologne Faculty of Medicine and University Hospital Cologne Cologne Germany
11. Department of Psychosomatic Medicine and Psychotherapy Paracelsus Medical University Nuremberg General Hospital Nuremberg Germany
12. Department of Psychosomatic Medicine and Psychotherapy University of Duisburg‐Essen Comprehensive Cancer Center Essen (WTZ) and LVR Hospital Essen Germany
13. Medical University Hospital Tuebingen Universitätsklinikum Tübingen Comprehensive Cancer Center Tübingen‐Stuttgart Tübingen Germany
14. Institute of Cognitive Science Woosuk University Jeonbuk Republic of Korea
15. Comprehensive Cancer Center Department Self‐help Research Medical Center Freiburg Faculty of Medicine University of Freiburg Freiburg Germany