[1] Univ Texas Southwestern, Div Digest & Liver Dis, Dallas, TX 75390 USA
[2] Univ Texas Southwestern, Div Endocrinol, Dallas, TX USA
[3] Mayo Clin Florida, Div Gastroenterol & Hepatol, Jacksonville, FL USA
[4] Univ Michigan, Div Gastroenterol & Hepatol, Ann Arbor, MI USA
[5] Univ Texas Southwestern, Dept Internal Med, Dallas, TX USA
[6] Univ Texas Southwestern, Dept Mol Genet, Dallas, TX USA
[7] Univ Texas Hlth Sci Ctr, Sch Publ Hlth, Dallas, TX USA
[8] Texas Christian Univ, Dept Nutr Sci, Ft Worth, TX USA