Gastroenterology and Gastrointestinal Endoscopy Unit;
IRCCS Vita-Salute University;
San Raffaele Scientific Institute;
20132 Milan;
Italy;
Gastroenterology Unit;
San Benedetto del Tronto Hospital;
63039 San Benedetto del Tronto (AP);
Italy;
Alessandro Del Maschio;
Department of Radiology;
IRCCS Vita-Salute University;
San Raffaele Scientific Institute;
20132 Milan;
Italy;
Department of Surgery;
IRCCS Vita-Salute University;
San Raffaele Scientific Institute;
20132 Milan;
Italy;