1 Department of Medical and Surgical Science, Gastroenterology Unit, Hospital of Imola, University of Bologna, Bologna, Italy; Research Center of Gastroenterology and Hepatology, University of Medicine and Pharmacy of Craiova, Craiova, Romania.
2 Research Center of Gastroenterology and Hepatology, University of Medicine and Pharmacy of Craiova, Craiova, Romania.
3 Department of Internal Medicine 2, Caritas-Krankenhaus Bad Mergentheim, Academic Teaching Hospital of the University of Würzburg, Würzburg, Germany.