1. Digestive Diseases Unit, Sant’Andrea University Hospital, ENETS Center of Excellence, Via di Grottarossa 1035, 00189 Rome, Italy
2. Unité de Gastro-Entérologie Service de Médicine Interne, Hôpital Riviera-Chablais, 1847 Rennaz, Switzerland
3. Digestive Endoscopy Unit, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
4. Department of Medical-Surgical Sciences and Translational Medicine, Sapienza University of Rome, Via Giorgio Nicola Papanicolau snc, 00189 Rome, Italy