1. Endocrinology Department, University Hospital of Santiago de Compostela, Neoplasia and Differentiation of Endocrine Cells Group, Instituto de Investigación Sanitaria—IDIS (Health Research Institute), Santiago de Compostela, Spain.
2. Department of Endocrinology and Nutrition, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
3. Medicine Department, Complutense University of Madrid, Madrid, Spain.
4. Department of Endocrinology and Nutrition, Cruces University Hospital, Barakaldo, Spain.
5. Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
6. Section of Endocrinology and Nutrition, Complejo Asistencial Universitario de León, León, Spain.
7. Hospital Universitari Mutua Terrassa, Terrassa, Spain.
8. Department of Endocrinology and Nutrition, Hospital Clínico Universitario de Valencia, Valencia, Spain.
9. INCLIVA Research Foundation, Valencia, Spain.
10. CIBERDEM, Madrid, Spain.
11. Department of Medicine, Universitat de Valencia, Valencia, Spain.