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Pie chart representing the abundance of sphingolipids in (A) Parental MCF-7 and (B) Dox-resistant MCF-7. Identified sphingolipids included sphingomyelin (SM), dihydrosphingomyelin (DHSM), ceramide (Cer), dihydroceramide (DHCer), hexosylceramide (HexCer). The data display the mean of four replica ± Std.
