Affiliation: | 1. Institute of Pathology, University Medical Center Hamburg‐Eppendorf, , Hamburg, Germany;2. Department of Urology, University Medical Center Hamburg‐Eppendorf, , Hamburg, Germany;3. Department of Urology, Clinical Center Itzehoe, , Itzehoe, Germany;4. Department of Urology, German Armed Forces Hospital, , Hamburg, Germany;5. Department of Urology, Regio Clinic Wedel, , Wedel, Germany;6. Institute of Pathology, Cantonal Hospital Basel, , Basel, Switzerland |