title: An improved procedure for the isolation of meningococcal, polysaccharide antigens, and the structural determination of the antigen from serogroup X.
mesh_terms: D000942:Antigens, Bacterial / Q000302:isolation & purification*; D008968:Molecular Conformation; D008970:Molecular Weight; D009345:Neisseria meningitidis / Q000032:analysis*; D011135:Polysaccharides, Bacterial / Q000302:isolation & purification*
chemical_list: D000942:Antigens, Bacterial; D011135:Polysaccharides, Bacterial