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Figure 6 Representative pseudo-color images illustrating intergroup optical retardation differences. Higher retardation is denoted by a progression in pixel color; purple, blue, green, yellow, orange, red. (A) MI, (B) MI + M-CSF, (C) MI + G-CSF. Interstitial space has zero retardation—purple. The M-CSF–treated scar contains more collagen fibers with high retardation values than the MI control or G-CSF cases, consistent with enhanced healing. (Panel width = 260 µm.) Abbreviations as in Figure 1.