[1] Hosp Galdakao, Biocruces Bizkaia Hlth Res Network, IBD Unit, Gastroenterol, Bilbao, Spain
[2] Hosp Univ & Politecn La Fe, Gastroenterol, Valencia, Spain
[3] Hosp Univ La Princesa, Gastroenterol, Inst Invest Sanitaria Princesa IIS IP, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Madrid, Spain
[4] Hosp Clin Barcelona, Gastroenterol, Barcelona, Spain
[5] Hosp Univ Marques de Valdecilla, Gastroenterol, Santander, Spain
[6] Hosp Clin Univ Santiago de Compostela, Gastroenterol, Santiago De Compostela, Spain
[7] Consorci Sanitari Terrassa, Gastroenterol, Terrassa, Spain
[8] Hosp Univ La Paz, Gastroenterol, Madrid, Spain
[9] Hosp del Mar, Med Res Inst IMIM, Gastroenterol, Barcelona, Spain
[10] Hosp Clin Univ Lozano Blesa CIBERehd, IIS Aragon, Gastroenterol, Zaragoza, Spain
[11] Complejo Asistencial Univ Leon, Gastroenterol, Leon, Spain
[12] Hospital Gen Granollers, Gastroenterol, Granollers, Spain
[13] Hosp Univ Fuenlabrada, Inst Invest La Paz IdiPaz, Gastroenterol, Fuenlabrada, Spain
[14] Hosp Univ Cruces, Baracaldo, Spain
[15] Hosp Ntra Sra Candelaria, Santa Cruz De Tenerife, Spain
[16] Althaia Xarxa Assistencial Univ Manresa, Gastroenterol, Manresa, Spain
[17] Hosp Univ Infanta Leonor, Gastroenterol, Madrid, Spain
[18] Complejo Hosp Univ Ferrol, Gastroenterol, Ferrol, Spain
[19] Hosp Badalona Germans Trias & Pujol, Gastroenterol, Badalona, Spain
[20] Hosp Montecelo, Gastroenterol, Pontevedra, Spain
[21] Hosp Univ Vall dHebron, Gastroenterol, Barcelona, Spain
[22] Hosp San Agustin, Gastroenterol, Aviles, Spain
[23] Hosp Univ Ramon & Cajal, Gastroenterol, Madrid, Spain
[24] Hosp Galdakao, Res Unit Red Invest Serv Salud Enfermedades Cron, Galdakao, Spain
[25] Hosp Univ La Princesa, Inst Invest Sanitaria Princesa IIS IP, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Madrid, Spain