HPHs from donor (HL-#37, and -#38) were infected with Ad/EYFP-hCAR and then subjected to eight hours of treatment with vehicle control (0.1% DMSO), the positive control, PB (1 mM), or each test compound at three indicated concentrations. Cellular localization of Ad/EYFP-hCAR was analyzed under confocal microscopy as outlined in Materials and Methods. Representative cellular distribution and chemical-mediated translocation were demonstrated (A). After treatment, one-hundred Ad/EYFP-hCAR expressing hepatocytes from donors (HL-#37, and -#38) were categorized into one of three groups: cytoplasmic, nuclear, or mixed (cytoplasmic + nuclear) (B).