[1] IDIS, Ctr Invest Biomed Red Enfermedades Raras CIBERer, Grp Med Xen, FPGMX, Santiago De Compostela 15706, Spain
[2] Hosp del Mar, IMIM Res Inst, Dept Gastroenterol, Barcelona 08003, Spain
[3] Univ Barcelona, Dept Gastroenterol, Hosp Clin, CIBERehd,IDIBAPS, E-08036 Barcelona, Spain
[4] Hosp Sagunto, Sect Digest Dis, Dept Internal Med, Valencia 46520, Spain
[5] Hosp Gen Univ Alicante, Dept Pathol, Alicante 03010, Spain
[6] Spanish Gastroenterol Assoc, Gastrointestinal Oncol Grp, Alicante 03010, Spain
[7] Hosp Gen Univ Alicante, Dept Gastroenterol, Alicante 03010, Spain
[8] Univ Illinois, Sect Digest Dis & Nutr, Dept Med, Chicago, IL 60607 USA
[9] Univ Illinois, Ctr Canc, Chicago, IL 60607 USA