[1] Vet Affairs Med Ctr, Gastroenterol & Hepatol, Kansas City, MO USA
[2] Univ Barcelona, Dept Pathol, Hosp Clin, Barcelona, Spain
[3] Univ Barcelona, Biobank Clin, IDIBAPS, Barcelona, Spain
[4] Univ Kansas, Sch Med, Gastroenterol, Kansas City, KS USA
[5] Cleveland Clin, Pathol, Cleveland, OH 44106 USA
[6] Univ Zaragoza, CIBERehd, Aragon Hlth Res Inst, Gastroenterol, Zaragoza, Spain
[7] Vet Affairs Med Ctr, Pathol, Kansas City, MO USA
[8] Ist Clinico Humanitas, Gastroenterol & Hepatol, Milan, Italy
[9] Oslo Univ Hosp, Pathol, Oslo, Norway
[10] Hosp Badalona Germans Trias & Pujol, Pathol Dept, Barcelona, Spain
[11] Inst Canc Res & Treatment, Pathol, Candiolo Torino, Italy
[12] Univ Barcelona, August Pi & Sunyer Biomed Res Inst IDIBAPS, Ctr Invest Biomed Red Area Temat Enfermedades Hep, Dept Gastroenterol,Hosp Clin Barcelona, Barcelona, Catalonia, Spain
[13] Loyola Univ, Gastroenterol, Maywood, IL 60153 USA