title: Structural studies of the capsular polysaccharide from Streptococcus pneumoniae type 12A.
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D007202:Indicators and Reagents; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D011135:Polysaccharides, Bacterial / Q000302:isolation & purification*; D013296:Streptococcus pneumoniae / Q000276:immunology*
chemical_list: D007202:Indicators and Reagents; D011135:Polysaccharides, Bacterial