1. Department of Diabetes; Endocrinology and Nutrition; Institut d'Investigació Biomèdica de Girona (IdIBGi); CIBEROBN (CB06/03/010) and Instituto de Salud Carlos III (ISCIII); Girona Spain
2. Metabolic Research Laboratory; Clínica Universidad de Navarra; CIBEROBN; IdiSNA; Pamplona Spain
3. Department of Surgery; Clínica Universidad de Navarra; CIBEROBN; IdiSNA; Pamplona Spain
4. Department of Endocrinology & Nutrition; Clínica Universidad de Navarra; CIBEROBN; IdiSNA; Pamplona Spain