title: Pneumococcal polysaccharide antibody levels in patients with term and preterm pregnancies.
mesh_terms: D000907:Antibodies, Bacterial / Q000032:analysis*; D005260:Female; D006801:Humans; D011135:Polysaccharides, Bacterial / Q000276:immunology*; D011247:Pregnancy / Q000276:immunology*; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D000907:Antibodies, Bacterial; D011135:Polysaccharides, Bacterial