1. Endocrine Research Unit, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
2. 1 Department of Pathology, Erasmus MC Cancer Institute, University Medical Center Rotterdam, Rotterdam, The Netherlands
3. 2 Department of Medicine III, Institute of Clinical Chemistry and Laboratory Medicine, Technische Universität Dresden, Dresden, Germany
4. 3 Hereditary Endocrine Cancer Group, Human Cancer Genetics Programme, Spanish National Cancer Research Centre (CNIO) and ISCIII Center for Biomedical Research on Rare Diseases (CIBERER), Madrid, Spain
5. 4 Department of Pathology, Reinier de Graaf Hospital, Delft, The Netherlands