1. From the Institute of Medicine at Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
2. Department of Endocrinology Sahlgrenska University Hospital Gothenburg Sweden
3. IIB‐Sant Pau and Department of Endocrinology/Medicine Hospital Sant Pau Univ Autonoma de Barcelona Barcelona Spain
4. Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER‐ER, Unidad 747) ISCIII Barcelona Spain
5. Department of Medicine Division of Endocrinology Center for Endocrine Tumours Leiden Leiden University Medical Center Leiden The Netherlands