1. Department of Urology and Paediatric Urology; University Hospital Ulm; Ulm Germany
2. UroEvidence@Deutsche Gesellschaft für Urologie; Berlin Germany
3. Institute for Evidence in Medicine; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg; Freiburg Germany
4. Cochrane Germany; Cochrane Germany Foundation; Freiburg Germany
5. Institute of Epidemiology and Medical Biometry; Ulm University; Ulm Germany
6. Department of Urology and Pediatric Urology; University Hospital Erlangen; Erlangen Germany
7. Comprehensive Cancer Center Erlangen-EMN (CCC ER-EMN); Erlangen Germany