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Representative pseudo precursor ion scanning mass spectra of cholesteryl esters (CEs, carbon number: double bond) extracted from MS/MSall data for (A) HMGECs and (B) culture media. Only those CEs present in all samples are included in the legend. Only the most abundant peaks are labeled in the figures to aid readability. CEs with carbon number (nc < 24) are present in both HMGECs and culture media, while CEs with nc ≥ 24 are only present in HMGECs.
