1Department of Hepatogastroenterology, Hôpital Claude Huriez, Centre Hospitalier Universitaire de Lille, Lille, France
2Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
3Department of Gastro-Enterologie, University Hospital of Gasthuisberg, Leuven, Belgium
4Department of Medicine, St Vincent's Hospital & Melbourne University, Melbourne, Victoria, Australia
5Analysis Group Inc., Boston, Massachusetts, USA
6Medical Affairs—Immunology, Abbott Laboratories, Parsippany, New Jersey, USA
7Global Health Economics and Outcomes Research, Abbott Laboratories, Abbott Park, Illinois, USA.