1. Endocrinology and Nutrition Unit, Hospital General de Segovia, Segovia, Spain.
2. Research and Development Unit, Insulcloud S.L., Madrid, Spain.
3. Faculty of Health, International University of La Rioja, Logroño, Spain.
4. Endocrinology and Nutrition Service, Cruces University Hospital, Barakaldo, Spain.
5. Endocrinology and Nutrition Service, Hospital Arquitecto Marcide, Ferrol (A Coruña), Ferrol, Spain.
6. Endocrinology and Nutrition Service, Hospital Universitario Central de Asturias, Oviedo, Spain.
7. Endocrinology and Nutrition Service, Hospital Universitario 12 de Octubre, Madrid, Spain.
8. Endocrinology and Nutrition Service, Hospital Universitario Infanta Sofía, San Sebastián de los Reyes, Spain.
9. Institut de Recerca, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.
10. Departament de Medicina, Universitat Autònoma de Barcelona, Bellaterra, Barcelona, Spain.
11. CIBER-BBN, Madrid, Spain.