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Representative images of ESS sections (viewed at 20X magnification) stained for BrdU positive keratinocytes. (A) Kerator; (B) Flasks. BrdU positive nuclei stain fluorescent green and are located predominantly in the basal layers of the epidermis. Keratinocytes in the epidermis are stained red by anti-pancytokeratin (see methods). Scale bar = 100μm.
