1. 1Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse, Dresden, Germany
2. 2Department of Medicine III, University Hospital Carl Gustav Carus, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse, Dresden, Germany
3. 3Department of Experimental Diabetology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
4. 4German Center for Diabetes Research (DZD), München-Neuherberg, Germany
5. 5Department of Neurosurgery, Vivantes Friedrichshain Hospital, Charité Academic Teaching Hospital, Landsberger Allee, Berlin, Germany
6. 6Institute of Physiology, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Fetscherstrasse, Dresden, Germany
7. 7Department of Radiopharmaceutical and Chemical Biology, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiopharmaceutical Cancer Research, Bautzner Landstrasse, Dresden, Germany
8. 8Hereditary Endocrine Cancer Group, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
9. 9Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Madrid, Spain
10. 10First Department of Medicine, University Medical Center Schleswig-Holstein, Lübeck, Germany
11. 11Department of Internal Medicine, Radboud University Medical Centre, Nijmegen, The Netherlands
12. 12Department of Medicine IV, University Hospital, LMU Munich, Munich, Germany
13. 13Department of Endocrinology, Diabetology and Clinical Nutrition, UniviersitätsSpital Zürich, Zurich, Switzerland
14. 14Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital of Würzburg, University of Würzburg, Würzburg, Germany
15. 15Department of Hypertension, National Institute of Cardiology, Warsaw, Poland
16. 16Section on Medical Neuroendocrinology Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, USA
17. 17Department of Medicine, Division of Endocrinology, University of Florida College of Medicine and Malcom Randall VA Medical Center, Gainesville, Florida, USA
18. 18Faculty of Chemistry and Food Chemistry, School of Science, Technische Universität Dresden, Mommsenstrasse, Dresden, Germany
19. 19Division of Pediatric Neuro-Oncogenomics, German Cancer Research Center (DKFZ), Heidelberg, Germany
20. 20German Consortium for Translational Cancer Research (DKTK), partner site Essen/Düsseldorf, Düsseldorf, Germany
21. 21Department of Pediatric Oncology, Hematology, and Clinical Immunology, Medical Faculty, University Hospital Düsseldorf, Düsseldorf, Germany
22. 22Department of Neuropathology, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany