Affiliation: | Carlo Maria Girelli, Giordano Bernasconi, Gastroenterology and Digestive Endoscopy Unit, Hospital of Busto Arsizio, 21052 Busto Arsizio (VA), ItalyRoberta Pometta, Corinna Facciotto, Roberto Mella, Division of Internal Medicine, Hospital of Angera, 21021 Angera (VA), Italy |