1. Department of Gastroenterology Hospital General de Tomelloso Tomelloso Spain
2. Instituto de Investigación Sanitaria La Princesa Madrid Spain
3. Instituto de Investigación Sanitaria de Castilla‐La Mancha (IDISCAM) Madrid Spain
4. Laboratory Medicine Department Hospital Universitario de La Princesa Madrid Spain
5. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas Instituto de Salud Carlos III Madrid Spain
6. Department of Gastroenterology Hospital Universitario de La Princesa Madrid Spain
7. Department of Surgery, Oncology and Gastroenterology University of Padua Padua Italy
8. Gastroenterology Unit Azienza Ospedaliera di Padova Padova Italy
9. Department of Gastroenterology Hospital Universitario de Navarra Pamplona Spain
10. Department of Gastroenterology Hospital Universitario Central de Asturias Oviedo Spain
11. Diet, Microbiota and Health Group Instituto de Investigación Sanitaria del Principado de Asturias (ISPA) Oviedo Spain
12. Department of Gastroenterology Hospital Universitario Valld’Hebrón Barcelona Spain
13. Department of Gastroenterology Fundación Jiménez Díaz Madrid Spain
14. Department of Gastroenterology Hospital Universitario Miguel Servet Zaragoza Spain
15. Department of Gastroenterology Hospital Universitario de Fuenlabrada Fuenlabrada Spain
16. Endoscopic Unit Department of Gastroenterology IRCCS Humanitas Research Hospital Milan Italy
17. Department of Biomedical Sciences Humanitas University Pieve Emanuele Italy
18. Department of Emergency Medicine and Trauma Care Aalborg University Hospital Aalborg Denmark
19. Department of Clinical Medicine Aalborg University Aalborg Denmark
20. Department of Gastroenterology Hospital de Viladecans Viladecans Spain
21. Department of Gastroenterology Hospital Universitario Rio Hortega Valladolid Spain
22. Pediatric Gastroenterology Unit Hospital Universitario Puerta de Hierro Majadahonda, Universidad Autónoma de Madrid Madrid Spain
23. Department of Gastroenterology Hospital Universitario Ramón y Cajal Madrid Spain
24. Department of Pediatric Gastroenterology Hospital Universitario Severo Ochoa Leganés Spain
25. Department of Gastroenterology Parc de Salut Mar Barcelona Spain
26. Pediatric Gastroenterology and Liver Unit Maternal and Child Health Department Sapienza ‐ University of Rome Rome Italy
27. Department of Gastroenterology Hospital Universitario Arnau de Vilanova & Hospital Universitario Santa María Lérida Spain
28. Department of Gastroenterology Hospital de Mataró Mataró Spain
29. Department of Gastroenterology Hospital General de la Defensa Zaragoza Spain
30. Department of Gastroenterology Hospital de Santa Bárbara Soria Spain
31. Department of Pediatric Gastroenterology Hospital de Granollers Granollers Spain
32. Department of Gastroenterology Centre Hospitalier d'Antibes Juan‐les‐Pins Antibes France
33. Department of Pediatrics Hospital General de Tomelloso Tomelloso Spain
34. Department of Pharmacy Hospital Universitario Central de Asturias Oviedo Spain
35. Personalized Medicine, Asthma and Allergy Clinic IRCCS Humanitas Research Hospital Rozzano Italy
36. Research Unit Hospital General Mancha‐Centro Alcázar de San Juan Spain