1. Department of Urology, Aarhus University Hospital, Aarhus N, Denmark;
2. Danish Center for Particle Therapy, Aarhus University Hospital, Aarhus C, Denmark;
3. Department of Oncology, Herlev Hospital, Herlev, Denmark;
4. Department of Oncology, Odense University Hospital, Odense C, Denmark;
5. Department of Oncology, Aalborg University Hospital, Aalborg, Denmark;
6. Department of Oncology, Rigshospitalet, København Ø, Denmark