1. Service of Digestive Disease, University Clinic Hospital, Zaragoza, Spain
2. Department of Medicine, Pstchiatry and Dermatology, University of Zaragoza, Zaragoza, Spain
3. Aragón Health Research Institute (IIS Aragón), Zaragoza, Spain
4. Centro de Investigación Biomédica en Red, Enfermedades Hepáticas y Digestivas (CIBERehd), Madrid, Spain