About the Authors

Rolf Jorde

rolf.jorde@unn.no

Affiliation Tromsø Endocrine Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway and Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway

Henrik Schirmer

Affiliation Department of Clinical Medicine, University of Tromsø, Tromsø, Norway

Tom Wilsgaard

Affiliation Department of Community Medicine, University of Tromsø, Tromsø, Norway

Ragnar Martin Joakimsen

Affiliation Tromsø Endocrine Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway and Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway

Ellisiv Bøgeberg Mathiesen

Affiliation Brain and Circulation Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway and Department of Neurology and Neurophysiology, University Hospital of North Norway, Tromsø, Norway

Inger Njølstad

Affiliation Department of Community Medicine, University of Tromsø, Tromsø, Norway

Maja-Lisa Løchen

Affiliation Department of Community Medicine, University of Tromsø, Tromsø, Norway

Yngve Figenschau

Affiliation Department of Medical Biology, Faculty of Health Sciences, University of Tromsø, Tromsø, Norway and Department of Laboratory Medicine, University Hospital of North Norway, Tromsø, Norway

Jens Petter Berg

Affiliation Department of Medical Biochemistry, Institute of Clinical Medicine, University of Oslo and Oslo University Hospital, Oslo, Norway

Johan Svartberg

Affiliation Tromsø Endocrine Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway and Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway

Guri Grimnes

Affiliation Tromsø Endocrine Research Group, Department of Clinical Medicine, University of Tromsø, Tromsø, Norway and Division of Internal Medicine, University Hospital of North Norway, Tromsø, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: RJ JS RMJ JPB. Performed the experiments: HS TW EBM IN M-LL. Analyzed the data: RJ HS TW YF JPB JS GG. Contributed reagents/materials/analysis tools: RJ HS TW YF JPB JS GG. Wrote the paper: RJ. Revised the manuscript critically for important intellectual content: HS TW RMJ EBM IN M-LL YF JPB JS GG.