[1] USC, Keck Sch Med, Dept Prevent Med, Div Biostat, Los Angeles, CA 90089 USA
[2] USC, Keck Sch Med, Dept Physiol & Biophys, Los Angeles, CA 90089 USA
[3] USC, Keck Sch Med, Inst Med Genet, Los Angeles, CA 90089 USA
[4] Kaiser Permanente So Calif, Res & Evaluat, Pasadena, CA USA
[5] USC, Keck Sch Med, Dept Med, Div Diabet & Endocrinol, Los Angeles, CA 90089 USA