1. University Hospital, Center for Mental Health, Department of Psychosomatic Medicine and Psychotherapy University of Freiburg Freiburg Germany
2. Klinikum rechts der Isar, Department of Psychosomatic Medicine and Psychotherapy Technical University of Munich Munich Germany
3. Department of Psychology University of Cologne Cologne Germany
4. Department of Hematology, Oncology and Palliative Care, Medical Department, St Josef‐Hospital Ruhr University Bochum Germany
5. Department of Psychosomatics and Psychotherapy, Faculty of Medicine and University Hospital Cologne University of Cologne Cologne Germany
6. College of Medicine University of Florida Gainesville Florida USA