Affiliation: | 1 Gastroenterology Unit, Valduce Hospital, Como, Italy;2 Endoscopy Unit, Centre for Liver & Digestive Disorders, The Royal Infirmary of Edinburgh, Edinburgh, Scotland, UK;3 National Library of Medicine, National Institutes of Health, Bethesda, Maryland, USA;4 Faculty of Economics & Management, Open University of Cyprus, Nicosia, Cyprus;5 Department of Internal Medicine, Gastroenterology and Digestive Endoscopy Unit, Busto Arsizio Hospital, Busto Arsizio, Italy;6 Department of Internal Medicine, Gastroenterology Unit, San Carlo Borromeo Hospital, Milan, Italy;7 Division of Gastroenterology, Department of Medicine, San Giovanni Battista University Teaching Hospital, Turin, Italy |