title: The tween-ether treated hemagglutinin of parainfluenza 2 virus.
mesh_terms: D000941:Antigens; D046508:Culture Techniques; D003588:Cytopathogenic Effect, Viral; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D006389:Hemagglutinins, Viral / Q000302:isolation & purification; D018108:Respirovirus / Q000187:drug effects*; D013501:Surface-Active Agents / Q000494:pharmacology*; D013696:Temperature
chemical_list: D000941:Antigens; D006389:Hemagglutinins, Viral; D013501:Surface-Active Agents