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Cellular localization of AK4 in the oviduct. Immunohistochemical analyses were performed using anti-AK4 antibody in the isthmus, and double-stained with AK4 and PAS staining in the ampulla. (A–C) Isthmus. (D–F) Ampulla of oviduct. Bar=200 µm (A, D), 100 µm (B, E), and 20 µm (C, F). Is, isthmus; NCC, non-ciliated cells; LP, lamina propria mucosae; Amp, ampulla. Open square indicates area of higher magnification.
