1 Liver Unit Hospital Clínic, Barcelona, Spain; Institut d'Investigacions Biomèdiques August Pi I Sunyer, Barcelona, Spain; Centro de Investigación En Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain.
2 NIHR Nottingham Biomedical Research Centre, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom; University of Nottingham, Nottingham, United Kingdom.
3 Institut d'Investigacions Biomèdiques August Pi I Sunyer, Barcelona, Spain; Centro de Investigación En Red de Enfermedades Hepáticas y Digestivas, Barcelona, Spain; Faculty of Nursing, University of Barcelona, Barcelona, Spain.
4 Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, Minnesota.
5 Unit of Internal Medicine and Hepatology, Department of Medicine, University of Padova, Padova, Italy.
6 Epidemiology, Statistics, and Prevention Institute, University of Zurich, Zurich, Switzerland.