Dr Corey Siegel, Director, Inflammatory Bowel Disease Center, Dartmouth-Hitchcock Medical Center, Gastroenterology and Hepatology, Lebanon, NH, USA.

Dr Peter Irving, Consultant Gastroenterologist, Guy's and St Thomas' Hospital London.

Prof David Rampton, Professor of Clinical Gastroenterology, Barts and The London, London.

Prof Fergus Shanahan, Professor and Chairman, Department of Medicine/Director of Alimentary Pharmabiotic Centre, University College Cork, Ireland.