1. Liver Unit, Hospital Clinic; University of Barcelona; Barcelona Spain
2. Institut d'Investigacions Biomèdiques August-Pi-Sunyer (IDIBAPS); Barcelona Spain
3. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHED); Barcelona Spain
4. Statistical Department; University of Barcelona; Barcelona Spain
5. Hormonal Laboratory Hospital Clínic; University of Barcelona; Barcelona Spain