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SFN increases the proportion of prostate cells in the floating population. BPH-1 (A and B) and PC-3 cells (C and D) were treated with 0, 3, 9, or 15 μM SFN and 48 h later the floating and attached cells were counted. Results are given as mean ± SD, n = 3. *P <0.05, **P <0.01, ***P <0.001.
