1. Tumor Biology Center, Faculty of Medicine and Medical Center University of Freiburg Freiburg im Breisgau Germany
2. Section of Health Care Research and Rehabilitation Research, Faculty of Medicine and Medical Center University of Freiburg Freiburg im Breisgau Germany
3. Endowment Professorship for Self‐Help Research, Faculty of Medicine and Medical Center University of Freiburg Freiburg im Breisgau Germany
4. German Professional Association for Social Work in Health Care e.V. (DVSG) Münster University Hospital Münster Germany
5. Research Methods Department University of Education Freiburg Freiburg im Breisgau Germany
6. Faculty of Social Sciences, Bielefeld University of Applied Sciences (FH Bielefeld) German Professional Association for Social Work in Health Care e.V. (DVSG) Bielefeld Germany
7. Institute of General Practice and Interprofessional Care University Hospital Tübingen Tübingen Germany
8. Scientific Institute of Office‐Based Hematologists and Oncologists (WINHO) Cologne Germany