1. Department of Preventive Medicine and Public Health; University of Navarra; Pamplona Spain
2. Navarra's Health Research Institute (IDISNA), Pamplona; Spain
3. Biomedical Research Center Network on Obesity and Nutrition (CIBERobn), Physiopathology of Obesity and Nutrition, Institute of Health Carlos III; Madrid Spain
4. Osasunbidea; Servicio Navarro de Salud; Pamplona Spain