B Bioluminescent images of tumor burden.C-D Total bioluminescent fluxes, at 35 days post-implantation (while the 'SU_3 wk' group was still receiving 60 mg/kg/day sunitinib treatment), were separately quantified from the thoracic (C) and abdominal (D) regions. Geometric means and P values from Mann-Whitney tests are depicted in (C and D). Percentages listed below the x-axes in panels (C and D) refer to treatment-associated changes in the geometric mean bioluminescence, relative to the vehicle group. 