1Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN
2Storr Liver Unit, Westmead Hospital and Westmead Millennium Institute, University of Sydney, Australia
3Department of Medicine, Alma Mater Studiorum University, Bologna, Italy
4Division of Gastroenterology, University of Turin, Ospedale San Giovanni Battista, Turin, Italy
5Department of Health Sciences Research, Mayo Clinic College of Medicine, Rochester, MN
6School of Clinical Medical Sciences, University of Newcastle and Freeman Hospital, Newcastle upon Tyne, UK
7Division of Anatomic Pathology, Mayo Clinic College of Medicine, Rochester, MN
8Pathology, Alma Mater Studiorum University, Bologna, Italy
9Department of Anatomical Pathology, Westmead Hospital and Westmead Millennium Institute, University of Sydney, Australia
Miles and Shirley Fiterman Center for Digestive Diseases, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905===
Received May 19, 2006
Accepted November 02, 2006
