About the Authors

Zeno Stanga

Contributed equally to this work with: Zeno Stanga, Stefan Nock

Affiliation Division of Endocrinology, Diabetes and Clinical Nutrition and Department of General Internal Medicine, University Hospital and University of Bern, Bern, Switzerland

Stefan Nock

Contributed equally to this work with: Zeno Stanga, Stefan Nock

Affiliation Private University, Triesen, Liechtenstein

Pedro Medina-Escobar

Affiliation Labormedizinische zentren Dr. Risch, Liebefeld, Switzerland

Urs E. Nydegger

Affiliation Labormedizinische zentren Dr. Risch, Liebefeld, Switzerland

Martin Risch

Affiliation Zentrallabor, Kantonsspital, Chur, Switzerland

Lorenz Risch

lorenzrisch@hotmail.com

Affiliations Private University, Triesen, Liechtenstein, Labormedizinische zentren Dr. Risch, Liebefeld, Switzerland, Division of Clinical Biochemistry, Medical University Innsbruck, Innsbruck, Austria

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZS SN LR. Performed the experiments: PME UEN MR LR. Analyzed the data: ZS SN PME LR. Contributed reagents/materials/analysis tools: ZS SN PME UEN MR LR. Wrote the paper: ZS SN PME UEN MR LR.