1. Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
2. Department for Health Evidence, Radboud University Medical Center, Nijmegen, The Netherlands
3. Department of Urology, Radboud university Medical Center, Nijmegen, The Netherlands
4. Strahlentherapie Bonn Rhein Sieg, Wesel, Germany
5. Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands