1. Instituto Universitario de Automática e Informática Industrial, Universitat Politècnica de València, València, Spain.
2. Centro de Investigación Biomédica en Red de Diabetes y Enfermadades Metabólicas Asociadas (CIBERDEM), Madrid, Spain.
3. Department of Medicine, University of Valencia, Valencia, Spain.
4. Department of Endocrinology and Nutrition, Clinic University Hospital of Valencia, Valencia, Spain.
5. Clinica di Medicina Interna e Scienze Endocrine e Metaboliche, University Hospital Santa Maria della Misericordia, Perugia University School of Medicine, Perugia, Italy.
6. Department of Internal Medicine, Francesc de Borja Hospital, Gandia, Spain.