1. CIBEROBN, Madrid, Spain
2. Instituto de Investigaciones Biomédicas Augusto Pi Sunyer, Barcelona, Spain
3. Rovira i Virgili University, Tarragona, Spain
4. Hospital del Mar Medical Research Institute, Barcelona, Spain
5. University of Valencia, Valencia, Spain
6. University Hospital Araba, Vitoria, Spain
7. University of Malaga, Malaga, Spain
8. Instituto de la Grasa, Seville, Spain
9. Institute of Health Sciences, Palma de Mallorca, Spain
10. Distrito Sanitario Atención Primaria, Seville, Spain
11. University of Barcelona, Barcelona, Spain
12. Research Institute of Biomedical and Health Sciences, Las Palmas, Spain
13. Bellvitge University Hospital, Barcelona, Spain