Professor of Medicine and Chairman of the Gastroenterology Division of Virginia Commonwealth University (VCU) Medical Center in Richmond, Virginia.
Professor of Hepatology at the Université Pierre et Marie Curie and the Hôpital Pitié-Salpêtrière Medical School in Paris, France.
Dean for Therapeutic Discovery and Chief of the Division of Liver Diseases, at Icahn School of Medicine at Mount Sinai in New York, NY.
Visiting Professor of Hepatology, Radcliffe Department of Medicine, University of Oxford, San Antonio, TX.
Professor of Medicine and Vice Chief, Division of Gastroenterology Adjunct Professor, Epidemiology and Public Health, University of California, San Diego, CA.
General Director of the Centers for Cooperative Research in Biosciences Biogune (Bilbao) and Biomagune (San Sebastián), and Research Professor of the Spanish National Research Council, Spain.