Celiac Disease

• Internal Medicine Department of the Hospital of Sciacca (Agrigento) — Sciacca, Agrigento, Italy
• Gastroenterology Unit of the "Civico" Hospital of Palermo — Palermo, Italy
• Internal Medicine Department of the University Hospital of Palermo — Palermo, Italy

Not specified

• AO Spedali Civili of Brescia — Brescia, Italy

Not specified

• Department of Pathology, Herlev University Hospital, Hellerup — Copenhagen, Denmark
• Endoscopy Z-806, Gentofte, Department of Surgical Gastroenterology, Gentofte and Herlev Hospitals — Copenhagen, Denmark
• Department of Medicine, GI Division, Allgemeines Krankenhaus MD — Celle, Germany
• Klinik für Gastroenterologie/GI-Onkologie, Allgemeines Krankenhaus Celle — Celle, Germany

• Department of Pediatrics, via Corridoni 11 — Ancona, Italy

• University of California, San Diego — La Jolla, California, United States
• Kaiser Permanente Southern California, Allergy Department — San Diego, California, United States
• University of Colorado, Denver — Aurora, Colorado, United States
• University of Chicago Celiac Disease Center — Chicago, Illinois, United States

• Corporació Sanitària i Universitària Parc Taulí — Sabadell, Barcelona, Spain

• National Institute of Digestive Diseases IRCCS "S. de Bellis" — Castellana Grotte, Bari, Italy

• Department of Medicine, Endoscopy Unit, Rikshospitalet — Oslo, Norway