About the Authors

Dominik M. Schulte

Affiliation Department I of Internal Medicine, University of Kiel, Kiel, Germany

Nike Müller

Affiliation Department I of Internal Medicine, University of Kiel, Kiel, Germany

Katrin Neumann

Affiliation Department I of Internal Medicine, University of Kiel, Kiel, Germany

Frank Oberhäuser

Affiliation Center of Endocrinology, Diabetes and Preventive Medicine, University of Cologne (Germany), Köln, Germany

Michael Faust

Affiliation Center of Endocrinology, Diabetes and Preventive Medicine, University of Cologne (Germany), Köln, Germany

Heike Güdelhöfer

Affiliation Center of Endocrinology, Diabetes and Preventive Medicine, University of Cologne (Germany), Köln, Germany

Burkhard Brandt

Affiliation Institute for Clinical Chemistry, University of Kiel, Kiel, Germany

Wilhelm Krone

Affiliation Center of Endocrinology, Diabetes and Preventive Medicine, University of Cologne (Germany), Köln, Germany

Matthias Laudes

matthias.laudes@uk-sh.de

Affiliation Department I of Internal Medicine, University of Kiel, Kiel, Germany

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: WK ML. Performed the experiments: DS NM KN FO MF HG BB. Analyzed the data: DS ML. Wrote the paper: WK ML.