1. Department of Endocrinology and Nutrition, Hospital Universitario Ramón y Cajal, Madrid, Spain
2. Diabetes, Obesity and Human Reproduction Research Group, Instituto Ramón y Cajal de Investigación Sanitaria, CIBER Diabetes y Enfermedades Metabólicas Asociadas, Madrid, Spain
3. Department of Vascular Surgery, Hospital Universitario Ramón y Cajal, Madrid, Spain
4. Department of Medicine and Medical Specialties, University of Alcalá, Madrid, Spain