1. Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa (IIS-Princesa), Universidad Autónoma de Madrid (UAM), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 28006 Madrid, Spain
2. Department of Paediatric Gastroenterology, Hepatology and Nutrition, Hospital Sant Joan de Déu, 08950 Barcelona, Spain
3. Paediatric Gastroenterology and Nutrition Department, Hospital Infantil Universitario Niño Jesús, 28009 Madrid, Spain
4. Paediatric Gastroenterology and Nutrition Unit, Hospital Regional Universitario de Málaga, Biomedical Re-search Institute of Málaga (IBIMA), 29010 Málaga, Spain
5. Gastroenterology Department, Hospital Clínic, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Institut d’Investigacions Biomèdiques Agustí Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
6. Paediatric Gastroenterology, Hepatology and Nutrition, UGC de Pediatría, Hospital Universitario Virgen del Rocío, 41013 Sevilla, Spain
7. Gastroenterology Department, Hospital Virgen del Rocío, 41013 Sevilla, Spain
8. Department of Paediatric Gastroenterology, Nutrition and Hepatology, University Hospital Germans Trias I Pujol, 08916 Badalona, Spain
9. Gastroenterology Department, Hospital Universitari Germans Trias I Pujol, Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), 08916 Badalona, Spain
10. Department of Gastroenterology, Xerencia Xestion Integrada de Vigo, SERGAS, Research Group in Digestive Diseases, Galicia Sur Health Research Institute (IIS Galicia Sur), SERGAS-UVIGO, 36312 Vigo, Spain
11. Department of Paediatrics, Xerencia Xestion Integrada de Vigo, SERGAS, 36312 Vigo, Spain
12. Paediatric Gastroenterology, Hepatology and Nutrition Department, Hospital General Universitario Gregorio Marañón, 28018 Madrid, Spain
13. Gastroenterology Department–CEIMI, Hospital General Universitario Gregorio Marañón, Departamento de Medicina, Universidad Complutense de Madrid, 28018 Madrid, Spain
14. Gastroenterology Department, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
15. Gastroenterology Department, Hospital Universitario Clínico de Santiago, 15706 Santiago de Compostela, Spain
16. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Clínico de Santiago, 15706 Santiago de Compostela, Spain
17. Gastroenterology Department, Complejo Hospitalario Universitario de Ourense, 32005 Orense, Spain
18. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Complejo Hospitalario Universitario de Ourense, 32005 Orense, Spain
19. Inflammatory Bowel Disease Unit, Gastroenterology Department, Hospital Universitario Miguel Servet, Health Research Institute of Aragón, 50009 Zaragoza, Spain
20. Gastroenterology Department, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
21. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Nuestra Señora de Candelaria, 38010 Santa Cruz de Tenerife, Spain
22. Gastroenterology Department, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Spain
23. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario de Canarias, 38320 Santa Cruz de Tenerife, Spain
24. Gastroenterology Department, Hospital Universitari de Girona Doctor Josep Trueta, 17007 Girona, Spain
25. Gastroenterology Department, Hospital Universitario Marqués de Valdecilla, 39008 Santander, Spain
26. Gastroenterology Department, Complejo Hospitalario Universitario de Pontevedra, 36071 Pontevedra, Spain
27. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Complejo Hospitalario Universitario de Pontevedra, 36071 Pontevedra, Spain
28. Gastroenterology Department, Hospital Universitario Reina Sofía, IMIBIC, 14004 Córdoba, Spain
29. Gastroenterology Department, Hospital Universitario de Alicante, Instituto de Investigación Sanitaria y Biomedica (ISABIAL), 03010 Alicante, Spain
30. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario de Alicante, 03010 Alicante, Spain
31. Gastroenterology Department, Hospital Universitario Central de Asturias, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
32. Paediatric Gastroenterology and Nutrition Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
33. Gastroenterology Department, Hospital Clínico de Valencia, 46010 Valencia, Spain
34. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Clínico de Valencia, 46010 Valencia, Spain
35. Inflammatory Bowel Disease Unit, Department of Gastroenterology and Hepatology, Hospital Puerta de Hierro, 28222 Madrid, Spain
36. Gastroenterology Department, Consorcio Hospital General Universitario de Valencia, 46014 Valencia, Spain
37. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Consorcio Hospital General Universitario de Valencia, 46014 Valencia, Spain
38. Gastroenterology, Hepatology and Nutrition Unit, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
39. Gastroenterology Department, Hospital Universitario Infanta Leonor, 28031 Madrid, Spain
40. Gastroenterology Department, Hospital Universitario de Fuenlabrada, 28942 Madrid, Spain
41. Paediatric Gastroenterology Unit, Hospital Universitario de Fuenlabrada, 28942 Madrid, Spain
42. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital Clínico Universitario Lozano Blesa, 50009 Zaragoza, Spain
43. Gastroenterology Department, Hospital Clínico Universitario Lozano Blesa, 50009 Zaragoza, Spain
44. Gastroenterology Department, Hospital Doctor José Molina Orosa, 35500 Las Palmas, Spain
45. Gastroenterology Department, Hospital Universitario de Basurto, 48013 Bilbao, Spain
46. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital de Torrejón, 28850 Madrid, Spain
47. Gastroenterology Department, Hospital de Torrejón, 28850 Madrid, Spain
48. Gastroenterology Department, Hospital Universitario Infanta Cristina, 28981 Madrid, Spain
49. Gastroenterology Department, Centro Consorci Sanitari Terrassa, 08227 Terrassa, Spain
50. Gastroenterology Department, Hospital de Henares, 28822 Madrid, Spain
51. Paediatric Gastroenterology, Hepatology and Nutrition Unit, Hospital de Henares, 28822 Madrid, Spain
52. Gastroenterology Department, Hospital de San Jorge, 22004 Huesca, Spain
53. Gastroenterology Department, Hospital San Pedro, 28037 La Rioja, Spain
54. Gastroenterology Department, Hospital Virgen de La Luz, 16002 Cuenca, Spain