1. Preventive Medicine and Public Health, University of Navarra, Pamplona, Spain
2. Nutrition, Harvard School of Public Health, Boston, Massachusetts
3. Clinical Sciences, University of Las Palmas de Gran Canaria, Las Palmas, Spain
4. Endocrinology, Hospital de Navarra, Pamplona, Spain
5. Preventive Medicine and Public Health, Hospital Virgen del Camino, Pamplona, Spain