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Merged images of dual immunolocalization of fibrillin 1 (red in A–C; green in D) and the basal lamina components of laminin 111 (green in A–C; red in D) counterstained with DAPI (blue) in bovine ovaries of fetuses at crown-rump length of 13 (A), 50 (B), 54 (C), and 75 cm (D), estimated as 86, 171, 181, and 229 d of gestation, respectively. Scale bars = 20 μm. Asterisks indicate follicles; diamonds indicate nests of oogonia.
