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The effect of Kalanchoe species water extracts on cancer cell lines. The HeLa (A–C), SKOV-3 (D–F), MCF-7 (G–I), and A375 (J–L) cells were treated with water extract of K. pinnata (A, D, G, J), K. blossfeldiana (B, E, H, K), and K. daigremontiana (C, F, I, L) at concentrations of 5–150 µg/mL for 24 h. The untreated cells were a control sample. Arrows represent the time point when the extracts were added to the cells.
