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. 2014 Dec 17;21(6):605–613. doi: 10.1089/ten.tec.2014.0513

FIG. 4.

FIG. 4.

Heat maps showing culture heterogeneity on (A) day 8, (B) day 12, and (C) day 16. Each pixel represents a single image with the intensity ranging from black (no lipid) to white (highest lipid content across all samples and time points). Day 4 is not included because lipid accumulation is limited early in the time course.