[1] Hosp Univ Ramon y Cajal, Dept Gastroenterol & Hepatol, Madrid, Spain
[2] Inst Ramon y Cajal Invest Sanitaria IRYCIS, Ctr Invest Biomed Red Enfermedades Hepat & Digest, Madrid, Spain
[3] Hosp Cruces, Dept Gastroenterol, Bilbao, Spain
[4] Inst Invest Sanitaria Santiago Compostela IDIS, Dept Gastroenterol & Hepatol, La Coruna, Spain
[5] Biomed Res Network Canc CIBERONC, Inst Ramon y Cajal Invest Sanitaria IRYCIS, Biomarkers & Personalized Approach Canc BIOPAC Grp, Madrid, Spain