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Location of claudin-11 in human testis with normal (NSP, A-C) and impaired spermatogenesis (Hyp, D-F; MA, G-I; SGA, J-L and SCO, M-O). Patches that have contact with the basal membrane are indicated by black arrowheads. Patches that do not touch the basal membrane are indicated by white arrowheads. The scale bar (15 μm) in image (A) applies to all images in panel I.
