About the Authors

Daniel Sachse

daniel.sachse@medisin.uio.no

Affiliations Department of Medical Biochemistry, University of Oslo, Oslo, Norway, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway, Department of Chemistry, University of Oslo, Oslo, Norway

Line Sletner

Affiliations Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway, Department of Child and Adolescents Medicine, Akershus University Hospital, Lørenskog, Norway, Department of Endocrinology, Morbid Obesity and Preventive Medicine, University of Oslo, Oslo, Norway

Kjersti Mørkrid

Affiliations Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway, Department of Endocrinology, Morbid Obesity and Preventive Medicine, University of Oslo, Oslo, Norway

Anne Karen Jenum

Affiliations Department of General Practice, University of Oslo, Oslo, Norway, Oslo and Akershus University College of Applied Sciences, Oslo, Norway

Kåre I. Birkeland

Affiliations Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway, Department of Endocrinology, Morbid Obesity and Preventive Medicine, University of Oslo, Oslo, Norway

Frode Rise

Affiliation Department of Chemistry, University of Oslo, Oslo, Norway

Armin P. Piehler

Affiliations Fürst Medical Laboratory, Oslo, Norway, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

Jens Petter Berg

Affiliations Department of Medical Biochemistry, University of Oslo, Oslo, Norway, Department of Medical Biochemistry, Oslo University Hospital, Oslo, Norway

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DS AKJ KIB APP JPB. Performed the experiments: DS LS KM FR. Analyzed the data: DS LS KM FR. Contributed reagents/materials/analysis tools: AKJ FR. Wrote the paper: DS LS KM AKJ KIB FR APP JPB.