title: Mutability towards L plaque character of the ECHO virus 19 S particles. I. Variation of mutation rate values versus multiplication in various host cell-medium systems.
mesh_terms: D000818:Animals; D003470:Culture Media; D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D029822:Enterovirus B, Human; D000882:Haplorhini; D006801:Humans; D009154:Mutation; D012641:Selection, Genetic; D014776:Virus Cultivation
chemical_list: D003470:Culture Media