1. Department of Gastroenterology, Hospital Clínico San Carlos and Instituto de Investigación del Hospital Clínico San Carlos [IdISSC], Madrid, Spain
2. Department of Gastroenterology, Hospital Infanta Leonor, Madrid, Spain
3. Department of Gastroenterology, Hospital Universitario Central de Asturias and Instituto de Investigación Biosanitaria del Principado de Asturias [ISPA], Oviedo, Spain
4. Department of Gastroenterology, Hospital Universitario de Fuenlabrada, Madrid, Spain
5. Department of Gastroenterology, Hospital de Cabueñes, Gijón, Spain
6. Department of Gastroenterology, Hospital La Paz, Madrid, Spain
7. Department of Gastroenterology, Hospital de Galdakao, Galdakao, Spain
8. Department of Gastroenterology, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain
9. Department of Gastroenterology, Complejo Hospitalario Universitario de Vigo, Vigo, Spain
10. Department of Gastroenterology, Hospital Universitario Fundación Alcorcón, Madrid, Spain
11. Department of Gastroenterology, Hospital Universitario Río Hortega, Valladolid, Spain
12. Department of Gastroenterology, Hospital Puerta de Hierro, Madrid, Spain
13. Department of Gastroenterology, Hospital Reina Sofía, Córdoba, Spain
14. Department of Gastroenterology, Hospitales Virgen Macarena-Rocío, Sevilla, Spain
15. Department of Gastroenterology, Hospital de Manises, Manises, Spain
16. Department of Gastroenterology, Hospital Gregorio Marañón and Instituto de Investigación Sanitaria Gregorio Marañón [IiSGM], Madrid, Spain
17. Department of Gastroenterology, Hospital Universitario de Canarias, La Laguna, Spain
18. Department of Gastroenterology, Hospital La Fe, Valencia, Spain
19. Department of Gastroenterology, Hospital Universitario de Torrejón, Madrid, Spain
20. Department of Gastroenterology, Hospital Universitario 12 de Octubre, Madrid, Spain
21. Department of Gastroenterology, Hospital Universitario Marqués de Valdecilla, Santander, Spain
22. Department of Gastroenterology, Hospital Clínico de Valladolid, Valladolid, Spain
23. Department of Gastroenterology, Complejo Hospitalario de Navarra and Instituto de Investigación Sanitaria de Navarra [IdiSNA], Pamplona, Spain
24. Department of Gastroenterology, Hospital Universitario Cruces, Bilbao, Spain
25. Department of Gastroenterology, Hospital Universitario de la Princesa, Instituto de Investigación Sanitaria Princesa [IIS-IP] and Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas [CIBEREHD], Madrid, Spain