1. Department of Health Sciences, University of Burgos, Burgos, Spain
2. Research Unit, Fundación Burgos por la Investigación de la Salud (FBIS), Hospital Universitario de Burgos, Burgos, Spain
3. Health Center Gamonal Las Torres, Burgos Primary Health Care Management, Burgos, Spain
4. Health Center Jose Luis Santamaría, Burgos Primary Health Care Management, Burgos, Spain
5. Endocrinology Department, Hospital Universitario de Burgos, Burgos, Spain