1. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS); Barcelona Spain
2. Grup Recerca Addiccions Clinic (GRAC-GRE) Psychiatry Department, Neurosciences Institute; Hospital Clínic of Barcelona, Red de Trastornos Adictivos (RTA); Barcelona Spain
3. Division of Gastroenterology and Hepatology; University of Miami Miller School of Medicine; Miami FL
4. Liver Unit, CIBER de Enfermedades Hepáticas y Digestivas (CIBERehd), Institució Catalana de Recerca i Estudis Avançats (ICREA); Universitat de Barcelona; Barcelona Spain
5. Division of Gastroenterology and Hepatology, Departments of Medicine and Nutrition; University of North Carolina at Chapel Hill; Chapel Hill NC
6. Pittsburgh Liver Research Center, Division of Gastroenterology, Hepatology and Nutrition; University of Pittsburgh Liver Center; Pittsburgh PA