title: The morphogenesis of virulent Newcastle disease virus in the chick embryo. An ultrastructural study.
mesh_terms: D000650:Amnion; D000818:Animals; D002642:Chick Embryo; D046508:Culture Techniques; D003593:Cytoplasm; D005321:Extraembryonic Membranes; D006652:Histological Techniques; D008566:Membranes; D008854:Microscopy, Electron; D009024:Morphogenesis; D009522:Newcastle disease virus / Q000254:growth & development*; D013154:Spleen; D014776:Virus Cultivation