title: [Determinism of bilateral symmetry in birds. II. Influence of the "position" of the ovum in the uterus on the orientation of the embryo].
mesh_terms: D000818:Animals; D001717:Birds / Q000196:embryology*; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D005260:Female; D006801:Humans; D010063:Ovum; D014599:Uterus
keywords: BIRDS/embryology; EMBRYO; OVUM