1. Department of Surgery, Oncology and Gastroenterology, University of Padua, Padua, Italy
2. Gastroenterology Unit, Azienda Ospedale Università di Padova, Padua, Italy
3. First Department of Internal Medicine, San Matteo Hospital Foundation, Pavia, Lombardia, Italy
4. Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, Ancona, Italy
5. Allergy Unit, Department of Internal Medicine, Azienda Ospedaliero-Universitaria delle Marche, Ancona, Italy
6. Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy
7. Department of Internal Medicine and Medical Therapeutics, University of Pavia, Pavia, Italy
8. Pediatric Gastroenterology and Liver Unit, Maternal and Child Health Department, University Hospital – Umberto I, Rome, Italy
9. Gastroenterology and Endoscopy Division, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
10. Personalized Medicine, Asthma and Allergy Clinic, IRCCS Humanitas Research Hospital, Rozzano, Milan, Italy
11. Internal Medicine and Gastroenterology, ‘Centro Malattie apparato digerente’ (CEMAD), Fondazione Policlinico Gemelli IRCCS, Roma, Lazio, Italy
12. ALTEMS Advisory, Spin-off of Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, Rome 00168, Italy
13. ALTEMS Advisory, Spin-off of Università Cattolica del Sacro Cuore, Rome, Italy