1. Department of Urology; Örebro University Hospital; Örebro Sweden
2. Department of Surgical and Perioperative Sciences, Urology and Andrology; Umeå University; Umeå Sweden
3. Regional Cancer Centre Uppsala-Örebro; Uppsala University Hospital; Uppsala Sweden
4. Department of Medical Epidemiology and Biostatistics; Karolinska Institutet; Stockholm Sweden
5. Department of Urology; Skåne University Hospital; Malmö Sweden