1. Endocrinology and Nutrition Department, University Hospital of Guadalajara, Guadalajara, Spain.
2. Institute for Health Research of Castilla la Mancha (IDISCAM), Guadalajara, Spain.
3. Nephrology Department, University Hospital of Guadalajara, Guadalajara, Spain.
4. Internal Medicine Department, University Hospital of Guadalajara, Guadalajara, Spain.
5. Department of Medicine and Medical Specialties, University of Alcalá, Alcalá de Henares, Spain.