title: Morphologic zones of the human fetal lip margin.
mesh_terms: D001808:Blood Vessels / Q000196:embryology; D002454:Cell Differentiation; D002648:Child; D004847:Epithelial Cells; D004848:Epithelium / Q000098:blood supply / Q000196:embryology / Q000294:innervation; D005865:Gestational Age; D006197:Hair; D006801:Humans; D008046:Lip / Q000098:blood supply / Q000166:cytology / Q000196:embryology* / Q000294:innervation; D009061:Mouth Mucosa / Q000166:cytology; D009411:Nerve Endings / Q000166:cytology; D009474:Neurons / Q000196:embryology