1. Endocrinology and Nutrition Service, University of Santiago de Compostela Hospital Complex, Santiago de Compostela, Spain.
2. Clinical Epidemiology Unit, University of Santiago de Compostela Hospital Complex, Santiago de Compostela, Spain.
3. Section of Endocrinology and Nutrition, Hospital El Bierzo, Ponferrada, Spain.
4. CIBER en Pathophysiology, Obesity and Nutrition (CB06/03), Institute of Health Carlos III, Santiago de Compostela, Spain.