title: Antigenic relationships among human and animal strains of parainfluenza viruses.
mesh_terms: D000818:Animals; D000941:Antigens; D003168:Complement Fixation Tests; D006168:Guinea Pigs; D006385:Hemagglutination Inhibition Tests; D006801:Humans; D066298:In Vitro Techniques; D018108:Respirovirus / Q000276:immunology*; D014780:Viruses / Q000276:immunology*
chemical_list: D000941:Antigens