[1] Univ Malaga, Hosp Univ Virgen De La Victoria, Inst Invest Biomed Malaga Ibima, Serv Aparato Digest & Farmacol Clin, Malaga, Spain
[2] Carlos III Hlth Inst, Biomed Res Network, Ctr Hepat & Digest Dis CIBERehd, Madrid, Spain
[3] Donostia Univ Hosp, Gastroenterol Serv, Donostia San Sebastian, Spain
[4] Mendaro Hosp, Gastroenterol Serv, Mendaro, Spain
[5] Univ Nacl Rosario, Hosp Pronv Centenario, Rosario, Argentina
[6] Plataforma Isciii Invest Clin, Platform Clin Res & Clin Trials Ibima, Madrid, Spain