University of Helsinki, University of Helsinki, University of Helsinki, University of Oslo - Oslo University Hospital, Aarhus University - Aarhus University Hospital, University of Copenhagen - Copenhagen University Hospital, Turku University Hospital, Lund University, Skane University Hospital - Department of Oncology, University of Bergen - Haukeland University Hospital, Karolinska Institutet - Karolinska University Hospital, Helsinki University Hospital, University of Oslo - Oslo University Hospital, Zealand University Hospital, University of Helsinki and University of Helsinki - Helsinki University Central Hospital