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Localization of fibronectin (FN) in corneal epithelial–stromal co-cultures (hCE-TJ/hCF) at 3 days post-airlift. High expression of fibronectin in the epithelial layer (left panel) with little expression in the stromal layer (right panel). Arrows (white) denote the region of the epithelial–stromal interface. Scale bar = 10 μm.
