[1] Hosp Univ Canarias, Inflammatory Bowel Dis Unit, Gastroenterol Dept, Santa Cruz De Tenerife, Spain
[2] Hosp Univ Nuestra Senora Candelaria, Inflammatory Bowel Dis Unit, Gastroenterol Dept, Santa Cruz De Tenerife, Spain
[3] Hosp Univ Miguel Servet, Inflammatory Bowel Dis Unit, Gastroenterol Dept, Zaragoza, Spain
[4] Hosp Clin San Carlos, Inflammatory Bowel Dis Unit, Madrid, Spain
[5] Inst Invest Hosp Clin San Carlos IdISSC, Gastroenterol Dept, Madrid, Spain
[6] Univ Autonoma Madrid UAM, Hosp Univ La Princesa, Inst Invest Sanitaria Princesa IIS Princesa, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Madrid, Spain
[7] Hosp Gen Univ Dr Balmis, Inflammatory Bowel Dis Unit, Inst Invest Sanitaria & Biomed Alicante ISABIAL, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Alicante, Spain
[8] HUM Valdecilla, Inflammatory Bowel Dis Unit, Gastroenterol Dept, Inst Invest Valdecilla IDIVAL, Santander, Spain
[9] Hosp Ramon & Cajal, Gastroenterol Dept, Madrid, Spain
[10] Hosp Univ Virgen del Rocio, Gastroenterol Dept, UGC Aparato Digest, Seville, Spain
[11] Hosp Univ 12 Octubre, Gastroenterol Dept, Madrid, Spain
[12] Univ Santiago De Compostela, Hosp Clin, Dept Gastroenterol, Hlth Res Inst IDIS,Gastroenterol Dept, Santiago De Compostela, Spain
[13] Hosp Univ La Paz, Grp Enfermedades Inmunomediadas Gastrointestin &, Gastroenterol Dept, Inst Hlth Res IdiPAZ, Madrid, Spain
[14] Hosp Univ Cent Asturias, Oviedo, Spain
[15] Inst Invest Sanitaria Principado Asturias ISPA, Gastroenterol Dept, Oviedo, Spain
[16] Complexo Hosp Univ Pontevedra, Gastroenterol Dept, Pontevedra, Spain
[17] Hosp Comarcal Inca, Gastroenterol Dept, Islas Baleares, Spain
[18] Univ Autonoma Barcelona, Inst Invest Innovac Parc Tauli I3PT, CERCA, Sabadell Catalunya Dept Med,Parc Tauli Hosp Univ, Catalunya, Spain
[19] Hosp Royo Villanova, Gastroenterol Dept, Zaragoza, Spain
[20] Hosp Santa Ana Motril, Gastroenterol Dept, Granada, Spain
[21] Hosp Badalona Germans Trias & Pujol, CIBEREHD, Gastroenterol Dept, Badalona, Spain
[22] Hosp Univ Infanta Cristina Parla, Gastroenterol Dept, Madrid, Spain
[23] Hosp Univ Infanta Sofia San Sebastian de los Reye, Gastroenterol Dept, Madrid, Spain
[24] Hosp Univ Galdakao Galdakao, Gastroenterol Dept, Galdakao, Spain