Chair of GastroenterologyDepartment of Clinical Science;
University of Parma;
Italy;
Gastroenterological UnitAzienda Ospedaliera "C.Poma";
Mantova;
Italy;
IRCCS Castellana Grotte (BA)Italy;
Gastroenterological UnitAzienda Ospedaliera;
Parma;
Italy;
IRCCS San Giovanni Rotondo (FG)Italy;