<p><b>Adrian C Bateman</b> is a Consultant in Histopathology at University Hospital Southampton, UK. <p><b>Joel K Greenson</b> is Professor of Pathology at the University of Michigan, USA. <p><b>Gregory Y Lauwers</b> is Professor of Pathology at Harvard Medical School, USA. <p><b>Maurice B Loughrey</b> is a consultant gastrointestinal pathologist in the Royal Victoria Hospital, Belfast, UK. <p><b>Marco R Novelli</b> is Professor of GI Pathology and Consultant Histopathologist, University College London Hospital, UK. <p><b>Kieran Sheahan</b> is Consultant Histopathologist at St. Vincent’s University Hospital, Dublin, Ireland. <p><b>Neil A Shepherd</b> is Professor of Gastrointestinal Pathology and Consultant Histopathologist at Gloucestershire Royal and Cheltenham General Hospitals, Gloucestershire, England, UK.