About the Authors

Harald Jörn Schneider

harald.schneider@med.uni-muenchen.de

Affiliations Institute of Clinical Chemistry and Laboratory Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany, Medizinische Klinik - Innenstadt, Klinikum der Universität, Munich, Germany

Henri Wallaschofski

Affiliation Institute of Clinical Chemistry and Laboratory Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Henry Völzke

Affiliation Institute for Community Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Marcello Ricardo Paulista Markus

Affiliation Institute for Community Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Marcus Doerr

Affiliation Department of Cardiology, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Stephan B. Felix

Affiliation Department of Cardiology, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Matthias Nauck

Affiliation Institute of Clinical Chemistry and Laboratory Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Nele Friedrich

Affiliation Institute of Clinical Chemistry and Laboratory Medicine, Ernst Moritz Arndt University Greifswald, Greifswald, Germany

Competing Interests

Harald J. Schneider received research grants from Pfizer, travel grants from Novartis, Pfizer, and Lilly, speaker fees from Novo Nordisk and Pfizer, and is a member of the German KIMS (Pfizer International Metabolic Survey) board, a scientific advisory board evaluating the effects of growth-hormone replacement in hypopituitarism sponsored by Pfizer. Henri Wallaschofski received research grants from Pfizer and Novo Nordisc and is member of the German KIMS (Pfizer International Metabolic Survey) board, a scientific advisory board evaluating the effects of growth-hormone replacement in hypopituitarism sponsored by Pfizer. Henry Völzke, Marcus Dörr, Marcelo Markus, Stephan B. Felix, Mathias Nauck, and Nele Friedrich report no conflict of interest. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: HJS NF HW. Performed the experiments: HV HW MD MN. Analyzed the data: HJS HW HV MM MD SBF MN NF. Contributed reagents/materials/analysis tools: HV HW. Wrote the paper: HJS. Critically revised manuscript for important intellectual content: HJS HW HV MM MD SBF MN NF.