[1] St Johns Med Coll Hosp, Dept Gastroenterol & Hepatol, Bangalore, India
[2] Baylor Univ, Baylor Scott & White, Med Ctr, Dallas, TX USA
[3] Western Univ, Schulich Sch Med, Dept Med, Div Gastroenterol, London, ON, Canada
[4] Pontificia Univ Catolica Chile, Escuela Med, Dept Gastroenterol, Santiago, Chile
[5] Univ Cape Coast, Sch Med Sci, Dept Internal Med, Cape Coast, Ghana
[6] Hosp Clin Barcelona, Inst Invest Biomed August Pi & Sunyer IDIBAPS, Liver Unit, Barcelona, Spain
[7] Mayo Clin, Coll Med & Sci, Rochester, MN USA
[8] 3410 Worth St,Suite 860, Dallas, TX 75246 USA