1. Department of Internal Medicine; Liver Transplant Unit; Hospital Puerta de Hierro; Madrid Spain
2. Liver Unit; Clínica Universitaria de Navarra; Pamplona Spain
3. CIBERehd (Centro de Investigación Biomédica en Red); Instituto de Salud Carlos III (ISCIII); Madrid Spain
4. Hepatobiliopancreatic Surgery and Transplantation Unit; Hospital Virgen del Rocío; Sevilla Spain
5. Liver Transplantation Unit; Hospital Universitario Central de Asturias; Oviedo Spain
6. Hospital Lozano Blesa; Zaragoza Spain
7. Clinical Management Unit of Digestive System; Hepatology Section; Hospital Universitario Reina Sofía; Córdoba Spain
8. Hepatobiliopancreatic Surgery and Liver Transplantation Unit; Hospital Universitari de Bellvitge; Barcelona Spain
9. Hospital Cruces; Bilbao Spain
10. Service of Hepatobiliopancreatic Surgery and Liver Transplantation; Hospital Universitario Vall d'Hebrón; Barcelona Spain
11. Abdominal Transplantation Unit; Hospital Clínico Universitario de Santiago de Compostela; Santiago de Compostela Spain
12. Liver Transplant Unit; Hospital Universitario Río Hortega; Valladolid Spain
13. Hepatology and Liver Transplantation Unit; Hospital Regional Universitario de Málaga; Málaga Spain
14. Hepatology and Liver Transplantation Unit; Service of Digestive System; Hospitales Universitarios de Granada; Granada Spain