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SSd induces apoptosis in osteosarcoma. Flow cytometry-based detection of apoptosis induced by SSd (80 µmol/l) treatment for 48 h. (A) Representative images of apoptosis analysis using Annexin V-FITC and PI double staining and (B) quantitative analysis of flow cytometry data. ***P<0.001. SSd, saikosaponin D; FITC, fluorescein isothiocyanate; PI, propidium iodide.
