1. Department of Medicine, University of Valladolid, Spain
2. Department of Internal Medicine, Virgen de la Luz Hospital, Cuenca, Spain
3. Department of Cell Biology, Genetics, Histology and Pharmacology, University of Valladolid, Spain
4. Department of Internal Medicine, Río Hortega University Hospital, Valladolid, Spain
5. Department of Internal Medicine, Marques de Valdecilla University Hospital, University of Cantabria, Spain
6. Unit Investigation, Río Hortega University Hospital, Valladolid, Spain
7. Department of Endocrinology, Valladolid University Hospital, Valladolid, Spain
8. Department of Clinical Pharmacology, Río Hortega University Hospital, Valladolid, Spain