Alan N. Langnas, DO is Chief of Transplantation and Director
of the Liver and Intestinal Transplantation Program at the
University of Nebraska Medical Center, Omaha, USA. Professor
Langnas has been doing liver transplants at UNMC since 1988 and
over the past seven years has performed more than 40 intestinal and
intestinal/liver transplants, establishing the UNMC program as one
of the top transplant centers in the world performing multiple
organ transplants. Along side his transplant work, Professor
Langnas also maintains an active practice treating non-transplant
hepato-biliary patients and serves on the editorial boards of
several medical journals. In addition to writing more than 100
research papers for medical journals, he is also active in several
capacities with the United Network for Organ Sharing, the national
organ allocation system in the U.S.

Olivier Goulet, MD, PhD Pediatric
Gastroenterology-Hepatology and Nutrition, Reference Center for
Rare Digestive Diseases, Integrated Program of Intestinal Failure,
Home Parenteral Nutrition and Intestinal Transplantation,
University of Paris-Descartes, Necker Hospital, Paris,
France.

Eamonn M.M. Quigley, MD, FRCP, FACP, FACG, FRCPI is
Professor of Medicine and Human Physiology and Head of the Medical
School at the National University of Ireland (NUI), Cork. He also
serves as Adjunct Professor of Medicine and Physiology at the
University of Nebraska Medical Center in Omaha, USA. He is
Editor-in-Chief of the American Journal of Gastroenterology and
Vice-President of the World Organization of Gastroenterology (OMGE
- Organisation Mondiale de Gastroentérologie). His major
research interests are in the areas of motility, functional
gastrointestinal disorders and gastrointestinal dysfunction in
systemic disease. He has published over 400 original papers,
reviews, editorials and book chapters and has received numerous
awards from universities and societies worldwide.

Kelly A. Tappenden, PhD, RD is Associate Professor of
Nutrition and Gastrointestinal Physiology in the Division of
Nutritional Sciences at the University of Illinois at
Urbana-Champaign, USA. Professor Tappenden recently received the
2005 American Society of Parenteral and Enteral Nutrition Dudrick
Research Scholar Award and the 2004 College of Agricultural,
Consumer and Environmental Sciences Faculty Award for Excellence in
Research. Professor Tappenden's research interests include
the regulation of small intestinal function by various nutrients
and gastrointestinal-specific pepides. Her recent publications are
featured in the Journal of Parenteral and Enteral Nutrition,
Journal of Pediatric Gastroenterology and Nutrition and Journal of
Nutrition. In addition to her academic research, Professor
Tappenden is also a Registered Dietician, having completed clinical
training at the Misericordia Hospital in Edmonton, Alberta.