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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Dev Biol. 2012 Feb 14;365(1):61–70. doi: 10.1016/j.ydbio.2012.02.009

Fig. 4.

Fig. 4.

Ultrastructure of mutant epithelium. Anterior heads in wild-type (A, C) and Ikkα−/− (B, D) at E18.5 (A–D). Cobblestone-like cells in Ikkα−/− (arrowheads in F, H, J, K) and Irf6−/− (N–P) at E13.5. No cobblestone-like cells in Ikkα−/− (L, M) at E18.5. SEM (E–H, L) and TEM (I–K, M, O, P).