[1] Univ Missouri, Dept Internal Med, Div Gastroenterol & Hepatol, Sch Med, Columbia, MO 65211 USA
[2] Boyce & Bynum Pathol Labs, Div Gastrointestinal & Hepatobiliary Pathol, Columbia, MO USA
[3] Univ Missouri, Dept Nutr & Exercise Physiol, Sch Med, Columbia, MO 65211 USA
[4] Univ Missouri, Dept Biostat, Sch Med, Columbia, MO 65211 USA
[5] Univ Missouri, Dept Surg, Sch Med, Columbia, MO 65211 USA
[6] Harry S Truman Mem Vet Hosp, Columbia, MO 65201 USA