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Fig. 8. Spatial localization of Cx43.4 transcripts in sectioned wholemount tailbud embryos. (A) Transverse section through head reveals Cx43.4 in brain, eyes and head mesenchyme. (B) Similar section stained for N-CAM to confirm neural structures. (C,D) Posterior transverse sections show Cx43.4 and N-CAM in spinal cord. Bar (A), 200 µm.