[1
]
Department of Urology, University Hospital of Cologne, Cologne, Germany.
[2
]
Prostate Center, Department of Urology, University Hospital Muenster, Muenster, Germany.
[3
]
Institute for Pathology, Hannover Medical School, Hannover, Germany.
[4
]
Prostate Center, Gerhard-Domagk Institute for Pathology, University Hospital Muenster,
Muenster, Germany.
[5
]
Institute for Pathology Saarbrücken-Rastpfuhl, Saarbrücken, Germany.
[6
]
Institute of Pathology and Cytology, Schüttorf, Germany.