title: Type-specific antibody responses of volunteers immunized with 23-valent pneumococcal polysaccharide vaccine.
mesh_terms: D000328:Adult; D000907:Antibodies, Bacterial / Q000096:biosynthesis*; D001428:Bacterial Vaccines / Q000276:immunology*; D006801:Humans; D008875:Middle Aged; D022242:Pneumococcal Vaccines; D011135:Polysaccharides, Bacterial / Q000276:immunology; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D001428:Bacterial Vaccines; D022242:Pneumococcal Vaccines; D011135:Polysaccharides, Bacterial