1. Internal Medicine Department, University Hospital of Badajoz, Badajoz, Spain
2. Internal Medicine Department, Marina Baixa Hospital, La Vila Joiosa, Alicante, Spain
3. Internal Medicine Department, San Juan de Alicante University Hospital, Alicante, Spain
4. Internal Medicine Department, Juan Ramón Jimenez University Hospital, Huelva, Spain
5. Internal Medicine Department, Regional University Hospital of Málaga, Málaga, Spain
6. Institute of Biomedical Research in Malaga (IBIMA), CIBER Physiopathology of Obesity and Nutrition – CIBERobn, Malaga, Spain
7. Internal Medicine Department, Infanta Cristina University Hospital, Parla, Spain
8. Internal Medicine Department, San Rafael General Hospital, A Coruña, Spain
9. Internal Medicine Department, Antequera General Hospital, Málaga, Spain