1. Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
2. Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands
3. Department of Urology, Canisius-Wilhelmina Hospital, Nijmegen, The Netherlands
4. Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
5. Department of Medical Microbiology, Jeroen Bosch Hospital, ‘s-Hertogenbosch, The Netherlands