1. Department of Neurosurgery, Johannes Wesling Klinikum, University
Hospital of the Ruhr-University Bochum, Minden, Germany
2. Department of General Internal Medicine, Endocrinology and Diabetes,
Infectious Diseases, Klinikum Bielefeld, Universitätsklinikum OWL,
Bielefeld, Germany
3. Department of Endocrinology, Endokrinologikum Frankfurt,
Frankfurt/Main, Germany
4. Deutsches Endokrinologisches Versorgungszentrum,
Frankfurt/Main, Germany
5. Institute of Endocrinology, Diabetology and Metabolism, Johannes
Wesling Klinikum, Minden, Germany