title: [In vitro differentiation of pathogenic and nonpathogenic avian influenza viruses].
mesh_terms: D000818:Animals; D002642:Chick Embryo; D046508:Culture Techniques; D005347:Fibroblasts; D006386:Hemagglutination Tests; D009980:Influenza A virus / Q000145:classification* / Q000472:pathogenicity; D008828:Microbiological Techniques / Q000662:veterinary*; D010948:Viral Plaque Assay / Q000662:veterinary; D014774:Virulence; D014776:Virus Cultivation
vernacular_title: In vitro Differenzierung von pathogenen und apathogenen aviären Influenzaviren.