Collaborators:

Ole Christian Lingjærde, University of Oslo

Arnoldo Frigessi, University of Oslo

Solveig Hofvind, Norwegian Cancer Registry

Lars Akslen, CCBIO, Haukeland University Hospital, Norway

Torill Sauer, Akershus University Hospital

Trine Tramm, Aarhus University Hospital, Denmark

Jelle Wesseling, Netherlands Cancer Institute, Netherlands

Laura Esserman, University of California San Francisco, USA

Frode Lingaas, Norwegian University of Life Sciences