1. Gastroenterology, Hospital Clínico Universitario San Carlos, Madrid, Spain
2. Gastroenterology, Hospital CUF Descobertas, Lisboa, Portugal
3. Gastroenterology, Hospital da Senhora da Oliveira, Guimarães, Portugal
4. Life and Health Sciences Research Institute (ICVS), School of Medicine, Universidade do Minho, Braga/Guimarães, Portugal
5. Gastroenterology, ICVS/3B’s—PT Government Associate Laboratory, Braga/Guimarães, Portugal
6. Gastroenterology, Hospital HM Sant Jordi, Barcelona, Spain
7. Gastroenterology, Hospital del Mar, Barcelona, Spain
8. Gastroenterology, Hospital San Rafael, A Coruña, Spain
9. Gastroenteroloy, Consorcio Hospitalario Provincial de Castelló, Castellón, Spain
10. Gastroenterology, Hospital Universitario La Zarzuela, Madrid, Spain
11. Gastroenterology, Hospital Quirón Salud Sagrado Corazón, Sevilla, Spain
12. Gastroenterology, Hospital Doctor López Cano, Cádiz, Spain
13. Gastroenterology, Parc Taulı́ Hospital Universitari, Institut d’Investigació i Innovació Parc Taulı́ I3PT, Sabadell, Spain
14. Medical Affairs, Norgine, Harefield, United Kingdom of Great Britain and Northern Ireland
15. Gastroenterology, Hospital Ruber Juan Bravo, Madrid, Spain