1. Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI) University Medical Center Mainz Mainz Germany
2. University Medical Center Mainz University Cancer Centre Mainz Germany
3. Netzwerk Hypopara im Bundesverband Schilddrüsenkrebs – Ohne Schilddrüse leben e.V. Berlin Germany
4. Clinic of Gastroenterology and Endocrinology University of Göttingen Göttingen Germany