[1] Univ Utah, Hlth Sci Ctr, Dept Med, Salt Lake City, UT 84132 USA
[2] Univ Utah, Hlth Sci Ctr, Dept Biochem, Salt Lake City, UT 84132 USA
[3] Univ Utah, Hlth Sci Ctr, Dept Pathol, Salt Lake City, UT 84132 USA
[4] Univ Missouri, Dept Nutr Sci, Columbia, MO USA