1. Gastroenterology Department, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
2. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas, Madrid, Spain
3. Gastroenterology Department, Hospital Clínic Universitari de València, València, Spain
4. Gastroenterology Department, Hospital Ramón y Cajal, Madrid Spain
5. Gastroenterology Department, Hospital Universitario Marqués de Valdecilla, Santander, Spain
6. Instituto de investigación IDIVAL, Santander, Spain
7. Gastroenterology Department, Hospital Universitari i Politècnic La Fe, València, Spain
8. Gastroenterology Department, Hospital del Mar, Barcelona, Spain
9. Gastroenterology Department, Hospital Universitario Puerta de Hierro, Majadahonda, Spain
10. Gastroenterology Department, Complexo Hospitalario Universitario de Vigo, Vigo, Spain
11. Biodonostia Health Research Institute, San Sebastián, Spain
12. Universidad del País Vasco/Euskal Herriko Unibertsitatea, San Sebastián, Spain
13. Gastroenterology Department, Complexo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain
14. Gastroenterology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
15. Gastroenterology Department, Corporació Sanitària Universitària Parc Taulí, Sabadell, Spain
16. Gastroenterology Department, Hospital Universitario Reina Sofía, Córdoba, Spain
17. Instituto Maimónides de Investigación Biomédica de Córdoba, Córdoba, Spain
18. Gastroenterology Department, Hospital Universitario Miguel Servet, Zaragoza, Spain
19. Gastroenterology Department, Hospital Universitari de Bellvitge (L’ Hospitalet de Llobregat), Barcelona, Spain
20. Gastroenterology Department, Hospital Universitario de Burgos, Burgos, Spain
21. Gastroenterology Department, Consorci Sanitari de Terrassa, Terrassa, Spain
22. Gastroenterology Department, Hospital Universitario Central de Asturias, Oviedo, Spain
23. Gastroenterology Department, Hospital Universitario Río Hortega, Valladolid, Spain
24. Gastroenterology Department, Hospital General Universitari de València, València, Spain
25. Gastroenterology Department, Hospital Gregorio Marañón, Madrid, Spain
26. Gastroenterology Department, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
27. Gastroenterology Department, Hospital Universitari Mútua Terrassa, Terrassa, Spain
28. Gastroenterology Department, Hospital Universitario Fundación de Alcorcón (Madrid), Spain
29. Gastroenterology Department, Hospital General San Jorge, Huesca, Spain
30. Gastroenterology Department, Hospital Universitario de La Princesa, IIS Princesa and UAM, Madrid, Spain
31. Gastroenterology Department, Hospital Universitario Infanta Sofía, Madrid, Spain
32. Gastroenterology Department, Hospital Clínico Universitario Lozano Blesa, IIS Aragón, Zaragoza, Spain
33. Gastroenterology Department, Hospital Clínic de Barcelona, Barcelona, Spain
34. Gastroenterology Department, Hospital General de Granollers, Granollers, Spain
35. Gastroenterology Department, Althaia Xarxa Assistencial Universitària de Manresa, Manresa, Spain
36. Gastroenterology Department, Hospital General Universitari d’Alacant, Alacant, Spain
37. Gastroenterology Department, Complejo Hospitalario de Navarra, Pamplona, Spain
38. Gastroenterology Department, Complejo Hospitalario Universitario de Pontevedra, Pontevedra, Spain
39. Gastroenterology Department, Hospital Moisès Broggi, Sant Joan Despí, Spain
40. Gastroenterology Department, Hospital General Universitari d’Elx, Elx, Spain
41. Gastroenterology Department, Hospital Universitario de Canarias, La Laguna, Spain
42. Gastroenterology Department, Hospital Universitario de Torrejón, Torrejón, Spain
43. Gastroenterology Department, Hospital Universitari Arnau de Vilanova, Lleida, Spain
44. Gastroenterology Department, Hospital General Universitari de Castelló, Castellón, Spain
45. Gastroenterology Department, Hospital Universitario de Álava, Vitoria, Spain
46. Gastroenterology Department, Hospital Clínico San Carlos, Madrid, Spain
47. Gastroenterology Department, Hospital Universitario de Galdakao, Biocruces Bizkaia HRI, Galdakao, Spain
48. Gastroenterology Department, Hospital Universitari Joan XXIII, Tarragona, Spain
49. Gastroenterology Department, Hospital Universitario Nuestra Señora de la Candelaria, Santa Cruz de Tenerife, Spain
50. Gastroenterology and Hepatology Department, Hospital Universitari Germans Trias i Pujol, Carretera de Canyet s/n, Badalona, Catalonia 08916, Spain
51. Departament de Medicina, Universitat Autònoma de Barcelona