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CT scan of response to single-agent apatinib and apatinib + CPT-11 + S1: (A) after 3 months of single-agent apatinib, (B) after 7 months of single-agent apatinib, (C) after 2 cycles of apatinib + CPT-11 + S1, (D) after 6 cycles of apatinib + CPT-11 + S1.
