1. Department of Public Health, University of Helsinki, Helsinki, Finland;
2. Amgen AB, Espoo, Finland;
3. Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland;
4. Department of Health and Social Management, University of Eastern Finland, Kuopio, Finland;
5. Group Administration, University of Helsinki and Helsinki University Hospital, Helsinki, Finland;
6. Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland