1 Faculty of Medicine, University of Helsinki, Helsinki, Finland.
2 Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
3 Faculty of Medicine, University of Helsinki, Helsinki, Finland; Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
4 Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
5 Department of Urology, University of Fukui Faculty of Medical Sciences, Fukui, Japan.
6 Department of Urology, Landspitali University Hospital, Faculty of Medicine, University of Iceland, Reykjavik, Iceland.
7 Department of Urology, Ghent University Hospital, Ghent, Belgium.
8 Department of Urology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
9 Department of Urology, Kanazawa Medical University, Ishikawa, Japan.
10 Department of Urology, Aalborg University Hospital, Aalborg, Denmark.
11 Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada; Division of Urology, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Department of Surgery, Woodstock Hospital, Woodstock, Ontario, Canada.
12 Department of Urology, Isala clinics, Zwolle, The Netherlands.
13 Division of General Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada; Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA.
14 Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Surgery, South Karelian Central Hospital, Lappeenranta, Finland. Electronic address: [email protected].