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(A) Fluorescence images following 1-h incubation are presented. (B) Cellular uptake of FITC-G4-FA was determined by using flow cytometry and plotted upon Supplementary Figure 6. Fluorescence images following 1-h incubation are presented. (C) Competitive inhibition assay on FITC-G4-FA by flow cytometry and plotted in Supplementary Figure 7 (n = 6).
*p < 0.05; **p < 0.01.
FA: Folic acid.
