Study concept and design: Schultz, Yaqub, Wallon, Forsmo, Folkesson, Buchwald, Körner, Dahl, Øresland.
Acquisition, analysis, or interpretation of data: Schultz, Yaqub, Wallon, Blecic, Forsmo, Folkesson, Buchwald, Körner, Dahl, Øresland.
Drafting of the manuscript: Schultz, Yaqub, Øresland.
Critical revision of the manuscript for important intellectual content: Schultz, Yaqub, Wallon, Blecic, Forsmo, Folkesson, Buchwald, Körner, Dahl, Øresland.
Statistical analysis: Schultz, Dahl.
Obtained funding: Schultz, Yaqub, Øresland.
Administrative, technical, or material support: Schultz, Yaqub, Wallon, Blecic, Forsmo, Folkesson, Buchwald, Körner, Dahl, Øresland.
Study supervision: Schultz, Yaqub, Wallon, Forsmo, Folkesson, Buchwald, Körner, Dahl, Øresland.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
SCANDIV Study Group Collaborators, Sweden: András Papp, MD, Urban Ersson, MD, Tilman Zittel, MD, Niklas Fagerström, MD, Dan Gustafsson, PhD (Hudiksvalls Hospital, Hudiksvall); George Dafnis, PhD (Eskilstuna County Hospital, Eskilstuna); Maria Cornelius, MD (Helsingborg Hospital, Helsingborg); Monika Egenvall, PhD, Per Olof Nyström, PhD (Karolinska University Hospital, Stockholm); Ingvar Syk, PhD, Dadi Vilhjalmsson, MD (Skåne University Hospital, Malmö); Lars Påhlman, PhD (Uppsala University, Uppsala); Gunnar Arbman, PhD (Vrinnevis Hospital, Linköping University, Norrköping); and Abbas Chabok, PhD (Västmanland Hospital, Västerås). SCANDIV Study Group Collaborators, Norway: Merete Helgeland, BSc (Akershus University Hospital, Lørenskog); Johan Bondi, PhD (Bærum Hospital, Vestre viken HF); Anders Husby, MD (Diakonhjemmet Hospital, Oslo); Ronny Helander, MD (Drammen Hospital, Vestre viken HF, Drammen); Arnulf Kjos, MD, Hilde Gregussen, MD (Innlandet Hospital, Hamar); Aras Jamal Talabani, MD, Gerd Tranø, PhD (Levanger Hospital, North-Trøndelag Hospital Trust, Levanger); Inge Holm Nygaard, MD (Molde Hospital, Helse Møre og Romsdal, Molde); Gro Wiedswang, PhD, Ole Helmer Sjo, PhD (Oslo University Hospital, Oslo); Kari Festøy Desserud, MD (Stavanger University Hospital, Stavanger); Stig Norderval, PhD, Mads Vikhammer Gran, MD (University Hospital of North Norway, Tromsø); Torkil Pettersen, MD, and Arild Sæther, MD (Østfold Hospital, Fredrikstad).
Funding/Support: The study was funded by the South-Eastern Norway Regional Health Authority with a fellowship awarded to Johannes Kurt Schultz (PNR 2719011). The study was also sponsored with research funding by Akershus University Hospital, which covered running expenses (PNR 2619041, 2629038, and 2649054).
Role of Funder/Sponsor: The funders of the study had no part in design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We would like to thank the following individuals for their kind assistance: Berit Marianne Bjelkåsen, Cand Mag, Unit of Applied Clinical Research, Institute of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway; Claes Johansson, PhD, Danderyd Hospital, Stockholm, Sweden. Mitra Rashidi, MD, Oslo University Hospital, Oslo, Norway. Frode Reier-Nilsen, MD, Akershus University Hospital, Lørenskog, Norway. The Safety Committee: Rune Sjödahl, PhD, University of Linköping, Sweden; Arild Nesbakken, PhD, University of Oslo, Norway; and Søren Laurberg, PhD, University of Århus, Denmark. Computed tomography monitoring: Peter Mæhre Lauritzen, MD, Radiologist, Department of Clinical Research, Akershus University Hospital, Norway. Website support: André Øien, BSc, University of Oslo, Oslo, Norway. Valuable advice on the manuscript: Michael Bretthauer, PhD, University of Oslo, Oslo, Norway. None of these individuals received compensation in association with their work on this article.