Peter Cotton, Professor of Medicine and Director of the Digestive Disease Centre, Medical University of South Carolina, Charleston, USA
Peter Cotton is one of the most famous endoscopists in the world.?He helped form the British Society for Digestive Endoscopy, became its president, and served the British Society of Gastroenterology as its vice president and treasurer. He was secretary of the European Society for Gastrointestinal Endoscopy and president of the Pancreatic Society of Great Britain. Dr Cotton was awarded the Rudolph Schindler award of the American Society for Gastrointestinal Endoscopy in 2004.
His bibliography includes over 900 publications, with more than 300 original contributions in peer reviewed journals, and 10 books. Practical Gastrointestinal Endoscopy (co-authored by Christopher Williams) is the standard teaching text.

Joseph Leung, Professor of Medicine at the University of California, Davis School of Medicine and Chief of Gastroenterology, VA Northern California Health Care System, USA
Dr. Leung is a Fellow of the Royal Colleges of Physicians of Edinburgh, Glasgow and London, as well as the Hong Kong College of Physicians and Hong Kong Academy of Medicine. He is also a Fellow of the American College of Physicians, the American Society for Gastrointestinal Endoscopy and Master of the American College of Gastroenterology.
Dr. Leung pioneered a number of therapeutic endoscopy procedures including epinephrine injection for ulcer hemostasis, urgent nasobiliary drainage for acute suppurative cholangitis, the design and development of the Cotton-Leung stent for biliary drainage and palliation of malignant obstructive jaundice.
Dr. Leung received the American College of Gastroenterology (ACG) Senior Governor Award in 2004 and American Society for Gastrointestinal Endoscopy (ASGE) Master Endoscopist Award in 2005 and Master of the ACG in 2010. He was a former Associate Editor for Gastrointestinal Endoscopy and currently Editor-in-Chief for the Journal of Interventional Gastroenterology. He is a reviewer for a number of prestigious journals including the New England Journal of Medicine, and the American Journal of Gastroenterology.?He has had over 400 articles, abstracts, and book chapters published and is the editor of 4 books.