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Fig. 1. The half maximal inhibitory concentration (IC50) of 5-fluorouracil and doxorubicin on HepG2 and SW480 cells (viable cells as a percentage of control). Cell viability was decreased dose- and time-dependently after 5-fluorouracil and doxorubicin exposure. IC50 was calculated according to every time point equation. For drug inactivity prevention, drugs were renewed every 24 hours. Cell viability is presented as percentage of viable cells versus control.
