David H, Van Thiel is a professor of medicine, a former president of the American Association for the study of liver disease and is widely recognized as one of the founding fathers if not, the father of medical liver transplantation worldwide. He attended Pomona College in Clairemont, California, and then entered Medical School at the University of California at Los Angeles graduating with honors in 1967. He has served as the chief of gastroenterology/hepatology at the University of Pittsburgh, Dir. of hepatology at Loyola University Chicago, and Rush University, Chicago. He is currently in private practice of gastroenterology and hepatology with an emphasis on hepatology, which accounts for 80-85% of his practice.