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Morphology and histology (H&E) of palate shelves tissues at E14.5 between case versus control. (a,b) The palatal shelf separated without fusion of case. (c,d) The palatal shelf contacts the midline and has been fused. (a,c) Morphological specimens; (b,d), H&E staining results; PS, palatal shelf; SP, secondary palate; T, tongue; NS, nasal septum; H&E, hematoxylin and eosin
