1. Pediatric Unit, “San Giovanni di Dio e Ruggi d'Aragona” University Hospital, Salerno, Italy;
2. European Biomedical Research Institute of Salerno, Salerno, Italy;
3. Division of Pediatric Gastroenterology and Nutrition, MassGeneral Hospital for Children, Harvard Medical School, Boston, Massachusetts, USA;
4. Celiac Research Program, Harvard Medical School, Boston, Massachusetts, USA;
5. Pediatric Gastroenterology Unit, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy;
6. NICU, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, University of Milan, Milan, Italy;
7. Pediatric Unit “Bruno Trambusti,” Osp Pediatrico Giovanni XXIII, University of Bari, Bari, Italy;
8. Celiac Disease Referral Center, “San Giovanni di Dio e Ruggi d'Aragona” University Hospital, Pole of Cava de' Tirreni, Salerno, Italy;
9. Pediatric Hepatology Gastroenterology and Transplant Unit, Ospedale Papa Giovanni XXIII Bergamo, Bergamo, Italy;
10. Pediatrics, IRCCS Ospedale Giannina Gaslini, Genova, Italy;
11. Pediatrics, Univ. Politec. delle Marche, Ancona, Italy;
12. NICU, University of Bari, Bari, Italy;
13. Celiac Disease Referral Center, Bambino Gesù Hospital, Rome, Italy;
14. Pediatric Training Program, University of Salerno School of Medicine, Salerno, Italy;
15. Celiac Disease Referral Center, Ospedale Maggiore Policlinico, Milan, Italy.