1. Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI); University Medical Centre, Johannes Gutenberg University; Mainz Germany
2. Department of Psychosomatic Medicine and Psychotherapy; University of Leipzig; Leipzig Germany
3. Division of Psychosocial Oncology; University of Leipzig; Leipzig Germany
4. Breast Cancer Centre; University of Leipzig; Leipzig Germany
5. Cancer Epidemiology Unit; University of Oxford; Oxford UK
6. Department of Otolaryngology; University of Leipzig; Leipzig Germany
7. Department of Obstetrics and Gynecology; University of Leipzig; Leipzig Germany
8. Department of Surgery; University of Leipzig; Leipzig Germany
9. Department of Medical Sociology and Health Economics; University Medical Center Hamburg-Eppendorf; Hamburg Germany
10. Department of Radiation-Oncology; University of Leipzig; Leipzig Germany
11. Breast Cancer Centre, Hospital St. Elisabeth; Leipzig Germany
12. Department of Social Medicine, Occupational Health, and Public Health; University of Leipzig; Leipzig Germany
13. Department of Maxillofacial Surgery; University of Leipzig; Leipzig Germany
14. Department of Urology; University of Leipzig; Leipzig Germany
15. Cancer Centre, Hospital St. Georg; Leipzig Germany
16. Department of Pulmonology; University of Leipzig; Leipzig Germany