1. Department of Psychosomatic Medicine and Psychotherapy; University Medical Center; Freiburg Germany
2. Division of Psychosocial Oncology, Department of Psychosomatic Medicine and Psychotherapy, Klinikum rechts der Isar; Technische Universität München; Munich Germany
3. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Psychosocial Oncology; Peking University School of Oncology; Beijing Cancer Hospital & Institute; Beijing China
4. Department of Internal Medicine, Haematology and Oncology; University Medical Center; Freiburg Germany