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(A). Representative pictures of each group. The total cells were identified by DAPI stain, and the positive apoptosis cells were identified by FITC stain.×200 magnification. (B). Quantitative data of apoptosis index (AI). There wasn’t significant difference of AI between groups even after treated by bevacizumab (mean±SD,*P = 0.81, **P = 0.75; t-test).
