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Bsk expression in the retina. A,B, Dark- and bright-field photomicrographs of a coronal view of a E18 mouse retina. C, D, Dark- and bright-field photomicrographs of a sagittal view of a E18 mouse retina. The signal intensity in A and Care not comparable because the results were obtained in separate experiments. a, Anterior; p, posterior;d, dorsal; v, ventral; t, temporal; n, nasal; GCL, ganglion cell layer; PL, plexiform layer. Scale bar, 320 μm.
