title: Occurrence of two hemagglutinins on Haemophilus paragallinarum strain 221 and comparison of their properties.
mesh_terms: D000918:Antibody Specificity; D006190:Haemophilus / Q000276:immunology*; D006388:Hemagglutinins / Q000145:classification*
chemical_list: D006388:Hemagglutinins