title: The mutual relations of structures in the growing bill of chick (Gallus domesticus L.) and duck (Anas platyrhynchos L.) embryos. III. The size, shape, and position of the upper and lower beaks in unilaterally microphthalmic chick embryos.
mesh_terms: D000818:Animals; D001502:Beak / Q000196:embryology*; D001699:Biometry; D002642:Chick Embryo; D004372:Ducks / Q000196:embryology*; D008334:Mandible / Q000196:embryology; D008850:Microphthalmos / Q000196:embryology*