1 Faculty of Medicine, University of Helsinki, Helsinki, Finland. Electronic address: apuertonino@gmail.com.
2 Department of Health Research Methods Evidence and Impact, McMaster University, Hamilton, Canada; Department of Medicine, McMaster University, Hamilton, Canada.
3 Faculty of Medicine, University of Helsinki, Helsinki, Finland.
4 Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
5 Faculty of Medicine, University of Helsinki, Helsinki, Finland; Department of Health Research Methods Evidence and Impact, McMaster University, Hamilton, Canada; Department of Urology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland; Department of Surgery, South Karelian Central Hospital, Lappeenranta, Finland.