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Demonstration of four specific epithelial (cyto)keratins in the soft abdominal epidermis of the Malayan pangolin; CK5 in (a), CK6 in (b), CK9 in (c), and CK10 in (d); it is shown that in the epidermis layers of this body part the reactions are rather weak to medium; DAB visualization. SB, stratum basale; SS, stratum spinosum; SG, stratum granulosum; SC, stratum corneum).
