1. Gastroenterology Department, University Hospital Miguel Servet, Zaragoza , Spain
2. Institute for Health Research Aragón [IIS Aragón] , Zaragoza , Spain
3. Gastroenterology Department, University Hospital Central de Asturias, and Instituto de Investigación Sanitaria del Principado de Asturias [ISPA] , Oviedo , Spain
4. Gastroenterology Department, University Hospital Nuestra Señora de la Candelaria , Santa Cruz de Tenerife , Spain
5. Gastroenterology Department, University Hospital of Fuenlabrada , Fuenlabrada , Spain
6. Gastroenterology Department, University Hospital Clínico San Carlos , Madrid , Spain
7. Gastroenterology Department, University Hospital Ramón y Cajal , Madrid , Spain
8. Gastroenterology Department, University Hospital of Donostia, San Sebastian, Spain; Instituto Biodonostia, Universidad del País Vasco [UPV/EHU], CIBERehd , Spain
9. Gastroenterology Department, Hospital General de Alicante , Alicante , Spain
10. Gastroenterology Department, La Paz University Hospital. School of Medicine; Universidad Autónoma de Madrid. Hospital La Paz Institute for Health Research, La Paz Hospital , Madrid , Spain
11. Gastroenterology Department, University Hospital Lozano Blesa , Zaragoza , Spain
12. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBEREHD] , Spain
13. Gastroenterology Department, University Hospital Rio Hortega , Valladolid , Spain
14. Gastroenteroly Department, University Hospital Marqués de Valdecilla , Santander , Spain
15. Gastroenterology Department, Hospital Universitario de Bellvitge, Hospitalet de Llobregat , Spain
16. Gastroenterology Department, University Hospital General de Castelló , Castellón , Spain
17. Gastroenterology Department, University Hospital Clínico de Valencia , Valencia , Spain
18. Gastroenterology Department, University Hospital General de Elche , Spain
19. Gastroenterology Department, Hospital Universitario de La Princesa, Instituto de Investigación Sanitaria Princesa [IIS-Princesa], Universidad Autónoma de Madrid [UAM] , Madrid , Spain
20. Gastroenterology Department, Hospital Universitario de Burgos , Burgos , Spain
21. Gastroenterology Department, University Hospital Fundación de Alcorcón , Alcorcón , Spain
22. Gastroenterology Department, Basurto University Hospital , Bilbao , Spain
23. Gastroenterology Department, Hospital Universitario de Santiago , Santiago de Compostela , Spain
24. Gastroenterology Department, Hospital Royo Villanova , Zaragoza , Spain
25. Gastroenterology Department, University Hospital Infanta Leonor , Madrid , Spain
26. Gastroenterology Department, University Hospital La Fe , Valencia , Spain
27. Gastroenterology Department, University Hospital Parc Taulí, Sabadel, Spain and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBEREHD] , Spain
28. Gastroenterology Department, University Hospital Infanta Sofía , San Sebastián de los Reyes , Spain
29. Gastroenterology Department, Consorci Sanitari de Terrassa , Terrasa , Spain
30. Gastroenterology Department, University Hospital Reina Sofía , Córdoba , Spain
31. Gastroenterology Department, Hospital de la Santa Creu i Sant Pau , Barcelona , Spain
32. Gastroenterology Department, Hospital Moisès Broggi , Sant Joan Despí , Spain
33. Gastroenterology Department, Alava University Hospital , Alava , Spain
34. Gastroenterology Department, Hospital Universitario San Jorge , Huesca , Spain
35. Gastroenterology Department, Hospital Universitari Mútua Terrassa , Spain
36. University of Barcelona , Terrassa , Spain
37. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBERehd] , Spain
38. Gastroenterology Department, Althaia Xarxa Assistencial Universitaria de Manresa , Manresa , Spain
39. Gastroenterology Department, Hospital Universitario de Canarias , Tenerife , Spain
40. Gastroenterology Department, Hospital de Manises , Manises , Spain
41. Gastroenterology Department, Hospital Santa Bárbara , Soria, España
42. Gastroenterology Department, Biocruces Bizkaia HRI , Galdakao , Spain
43. Gastroenterology Department, Hospital Universitari Germans Trias i Pujol , Badalona , Spain
44. Universitat Autònoma de Barcelona , Spain