1 Gastroenterology Department. Parc Taulí Hospital Universitari. Institut d’Investigació i Innovació, Parc Taulí (I3PT-CERCA). Sabadell, Catalunya, Departament de Medicina, Universitat Autònoma de Barcelona, Sabadell, Spain|||CIBERehd. Centro de Investigaci

2 Gastroenterology Department, Consorci Sanitari de Terrassa, Terrassa, Spain

3 Gastroenterology Department, Hospital Nuestra Senora de la Candelaria, Santa Cruz de Tenerife, Spain

4 Gastroenterology Department, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain|||CIBERehd. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD). Instituto de Salud Carlos III, Madrid, Spain

5 Gastroenterology Department, Hospital Ramon y Cajal, Madrid, Spain

6 Gastroenterology Department, Hospital Río Hortega, Valladolid, Valladolid, Spain

7 Gastroenterology Department, Hospital General de Granollers, Granollers, Spain

8 Gastroenterology Department, Hospital Uniersitari i Politècnic La fe, Valencia, Spain

9 Gastroenterology Department, Hospital Universitario Marqués de Valdecilla e IDIVAL, Santander, Spain

10 Gastroenterology Department, Hospital Universiario La Paz, Madrid. La Paz Institute for Health Research (IdiPAZ), Madrid, Spain

11 Gastroenterology Department, Hospital Universitario de Gran Canaria Dr. Negrín, Las Palmas, Spain

12 Gastroenterology Department, Hospital Universitario de Fuenlabrada, Madrid, Spain

13 Gastroenterology Department, Hospital Universitario Puerta de Hierro, Majadahonda, Spain

14 Gastroenterology Department, Hospital Universitari Bellvitge, L'Hospitalet de Llobregat, Spain

15 Gastroenterology Department. Hospital Clínic, Barcelona. Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain

16 Gastroenterology Department, Hospital Clínico Universitario de Santiago de Compostela, Santiago de Compostela, Spain

17 Gastroenterology Department, Hospital Dr. Josep Trueta, Girona, Spain

18 Gastroenterology Department, Hospital Clínico de Valencia, Valencia, Spain

19 CIBERehd. Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD). Instituto de Salud Carlos III, Madrid, Spain|||Gastroenterology Department. Biodonostia Health Research Institute. Universidad del País Vasco (UPV/EHU),

20 Gastroenterology Department, Hospital General Universitario de Elche, Elche, Spain

21 Gastroenterology Department, Hospital Joan XXIII, Tarragona, Spain

22 Gastroenterology Department, Hospital de Toledo, Toledo, Spain

23 Gastroenterology Department, Hospital Universitario A Coruña, A Coruña, Spain

24 Gastroenterology Department.Hospiral Universitario de Canarias, La Laguna, Spain

25 Gastroenterology Department, Hospital Universitario Infanta Cristina, Parla, Spain

26 Gastroenterology Department, Hospital de Basurto, Bilbao, Spain