Dr. Ángel Lanas is a Professor of Medicine at the University of Zaragoza, Vice-Dean for Research Affairs at the Medical School of Medicine University of Zaragoza, Chairman of the Digestive Diseases Service at the University Hospital “Lozano Blesa” of Zaragoza, Scientific Director of the Aragón Health Research Institute (IIS Aragón), and member of the “Centro de Investigacion Biomédica en Red de enfermedades hepaticas y digestivas” (CIBERehd). He is also an Honorary Professor at the Chinese University of Hong Kong. He received his medical degree from the University of Zaragoza, Spain in 1984, carried out his postgraduate training in internal medicine-gastroenterology at the University Hospital at Zaragoza, was a visiting professor to the Department of Gastroenterology at the University of Alabama in Birmingham, Alabama, USA from November 1989 to December 1991. He joined the faculty at the University of Zaragoza in 1992. He is a member and International Fellow of the American Gastroenterological Association, American Colleague of Gastroenterology, and the Asociación Española de Gastroenterología (AEG). He was president of the AEG for 4 years and was also a member of the General Assembly of the United European Gastroenterology Federation. He is actively involved in both clinical and basic investigation relating to acid peptic disorders, particularly NSAIDs, aspirin, and gastrointestinal toxicity as well as mechanisms of chemoprevention of colon cancer and Barrett's esophagus.