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Migration of the U2OS S and U2OS R+ lineages. The x-axis corresponds to the time in hours and the y-axis is the average of the number of cells that migrated. At 24 and 48 h, U2OS R+ cells had greater migration capacity compared to U2OS S cells (*), and at 72 h the difference in migration between the sensitive and resistant groups was of p < 0.0001 (****).
