About the Authors

Ingvild S. Fenne

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Thomas Helland

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Marianne H. Flågeng

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Simon N. Dankel

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Gunnar Mellgren

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Jørn V. Sagen

jorn.sagen@med.uib.no

Affiliations Department of Clinical Science, University of Bergen, Bergen, Norway, Hormone Laboratory, Haukeland University Hospital, Bergen, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ISF JVS GM. Performed the experiments: ISF TH. Analyzed the data: ISF TH MHF SND GM JVS. Contributed reagents/materials/analysis tools: ISF GM JVS. Wrote the paper: ISF TH GM JVS.