1. Department of Gastroenterology Hospital Clínico Universitario Lozano Blesa Zaragoza Spain
2. Department of Gastroenterology Althaia Xarxa Assistencial Universitària de Manresa Manresa Spain
3. IIS (Instituto de Investigacion Sanitaria) Aragón Zaragoza Spain
4. Department of Gastroenterology Hospital General Universitario Dr.Balmis Alicante Spain
5. ISABIAL (Instituto de Investigación Sanitaria y Biomédica de Alicante) Alicante Spain
6. Department of Gastroenterology Hospital Universitario Miguel Servet Zaragoza Spain
7. Department of Gastroenterology Hospital de Galdakao Bizkaia Spain
8. Instituto de Investigación Sanitaria Biocruces Bizkaia Spain
9. Research and Innovation Unit Althaia Xarxa Assistencial Universitària de Manresa Manresa Spain
10. Central Catalonia Chronicity Research Group (C3RG) Centre for Health and Social Care Research (CESS), University of Vic‐Central University of Catalonia (UVIC‐UCC) Vic Spain
11. Faculty of Medicine University of Vic‐Central University of Catalonia (UVIC‐UCC) Vic Spain
12. Department of Gastroenterology Hospital Universitario Son Espases Palma de Mallorca Spain
13. Department of Gastroenterology Hospital Universitario Río Hortega Valladolid Spain
14. Department of Gastroenterology and Hepatology Hospital Universitario Ramón y Cajal Madrid Spain
15. Universidad Miguel Hernández Elche Spain
16. Department of Gastroenterology Hospital Universitario Santa Lucia Cartagena Spain
17. Department of Gastroenterology Hospital Universitario de Burgos Burgos Spain
18. Department of Gastroenterology Hospital Universitario Arnau de Vilanova Lleida Spain
19. Department of Gastroenterology Hospital Universitario de La Princesa Madrid Spain
20. IIS (Instituto de Investigación Sanitaria)‐Princesa Madrid Spain
21. Department of Gastroenterology Hospital Universitario San Pedro Logroño Spain
22. Department of Gastroenterology Hospital Universitario Gregorio Marañón Madrid Spain
23. Gastroenterology Hepatology and Nutrition Unit Hospital Universitario San Jorge Huesca Spain
24. Specialist in Family and Community Medicine. Hospital Universitario San Jorge Huesca Spain
25. Department of Gastroenterology Hospital Universitario Josep Trueta Girona Spain
26. Universidad de Alcalá Madrid Spain
27. IRYCIS (Instituto Ramón y Cajal de Investigación Sanitaria) Madrid Spain
28. Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas (CIBERehd) Instituto de Salud Carlos III Madrid Spain
29. Department of Gastroenterology Hospital Universitario Donostia Donostia Spain
30. Department of Surgery Hospital Regional de Alta Especialidad Del Bajío León México
31. Department of Gastroenterology Hospital Civil de Guadalajara Fray Antonio Alcalde Guadalajara México