1 Department of Internal Medicine, Radboud University Medical Center, Nijmegen, The Netherlands.
2 Department of Urology, Radboud University Medical Center, Nijmegen, The Netherlands.
3 Department of Radiology, Radboud University Medical Center, Nijmegen, The Netherlands.
4 Department of Pathology, Radboud University Medical Center, Nijmegen, The Netherlands.
5 Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany.
6 Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden, Dresden, Germany.