title: The application of the hemagglutination-inhibition test in the diagnosis of avian pneumoencephalitis (Newcastle disease).
mesh_terms: D000818:Animals; D004194:Disease; D006384:Hemagglutination; D006385:Hemagglutination Inhibition Tests; D009521:Newcastle Disease / Q000175:diagnosis*; D014777:Virus Diseases; D014780:Viruses
keywords: NEWCASTLE DISEASE/diagnosis; VIRUSES/diseases