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Effect of oxytetracycline, propafenone and metamizole on cell cycle distribution of lung cancer A549 cells. Cells were exposed to the drugs and incubated for 48 h, and then were stained with PI. Values are expressed as percentage of the cell population in the G1, S and G2 phases of cell cycle. (A) Control; (B) Oxytetracycline 0.1 g/L; (C) Propafenone 0.02 g/L; (D) Metamizole 0.1 g/L.
