1. University of Gothenburg, Department of Oncology, Gothenburg, Sweden;
2. Oslo University Hospital, The Norwegian Radium Hospital, Oslo, Norway;
3. Comprehensive Cancer Center, Helsinki University Hospital, Helsinki, Finland;
4. University of Oulu, Department of Cancer and Radiotherapy, Oulu, Finland;
5. Novartis Healthcare A/S, Copenhagen, Denmark;
6. Mapi, Real World Strategy & Analytics, Stockholm, Sweden;
7. Mapi, Real World Strategy & Analytics, Lyon, France;
8. Institute of Clinical Medicine, Campus AHUS, University of Oslo, Oslo, Norway & Department of Oncology, Akershus University Hospital, Akershus, Norway;