1. Department of Neurosurgery, Hamburg University Medical Center, Hamburg, Germany
2. ENDOC Praxis für Endokrinologie, Andrologie und medikamentöse Tumortherapie, Hamburg, Germany
3. Department of Neurosurgery, University of Tuebingen, Tuebingen, Germany
4. Medicover Oldenburg MVZ, Oldenburg, Germany
5. Max-Planck-Institut für Psychiatrie, Munich, Germany
6. Department of Internal Medicine I, Division of Endocrinology and Diabetes, University Hospital Würzburg, Würzburg, Germany
7. Vivantes Klinikum im Friedrichshain, Berlin, Germany
8. Department of Neurosurgery, Johannes Wesling Klinikum Minden, Ruhr University Bochum, Minden, Germany
9. Ludwig-Maximilians–University of Munich, Department of Internal Medicine IV, Munich, Germany