[1] Indiana Univ, Div Gastroenterol & Hepatol, Indianapolis, IN USA
[2] Cleveland Clin Fdn, Div Gastroenterol & Hepatol, Cleveland, OH USA
[3] Indiana Univ, Dept Biostat & Hlth Data Sci, Indianapolis, IN USA
[4] Dept Gastroenterol & Hepatol, Mayo Clin, Rochester, MN USA
[5] Univ Louisville, Div Gastroenterol & Hepatol, Louisville, KY USA
[6] Univ Pittsburgh, Med Ctr, Div Gastroenterol Hepatol & Nutr, Pittsburgh, PA USA
[7] Hosp Clin Barcelona, Div Hepatol, Barcelona, Spain
[8] Beth Israel Deaconess Med Ctr, Div Gastroenterol, Boston, MA USA
[9] Natl Inst Alcohol Abuse & Alcoholism, Rockville, MD USA
[10] Univ Massachusetts, Med Sch, Dept Populat & Quantitat Hlth Sci, Worcester, MA USA
[11] Virginia Commonwealth Univ, Div Gastroenterol Hepatol & Nutr, Richmond, VA USA
[12] Univ Texas Southwestern, Div Digest & Liver Dis, Dallas, TX 75390 USA