1 Department of Medicine, Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA; Department of Hepato-Gastroenterology, University Hospital of Rennes, Pontchaillou and INSERM U991, University of Rennes 1, Rennes, France. Electronic address: [email protected].
2 Department of Medicine, Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA.