Paolo Usai-Satta works as the Director of the Division of Gastroenterology, “Brotzu” Hospital, Cagliari, Italy. He is a National Secretary and Treasurer of AIGO, the Italian Association of Hospital Gastroenterologists and Endoscopists (AIGO). He is a Professor of Gastroenterology at the University of Cagliari, Cagliari, Italy. In his long career, he has acquired considerable experience in the diagnosis and treatment of diseases of the digestive system, in particular celiac disease with its complications, and chronic inflammatory intestinal diseases. His research interests include Breath Tests, Genetics, IBS, Helicobacter Pylori Eradication, Esophageal Diseases, Channelopathies, and Gastroenterology.