title: Observations on the structure of the nucleocapsids of some paramyxoviruses.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D046508:Culture Techniques; D008459:Measles virus; D008854:Microscopy, Electron; D009109:Mumps virus; D009975:Orthomyxoviridae; D010222:Parainfluenza Virus 1, Human; D014776:Virus Cultivation