title: Structural studies of the O-antigen polysaccharide of Escherichia coli 09a.
mesh_terms: D002236:Carbohydrate Conformation; D002240:Carbohydrate Sequence; D002849:Chromatography, Gas; D004926:Escherichia coli / Q000276:immunology*; D009682:Magnetic Resonance Spectroscopy; D008745:Methylation; D011135:Polysaccharides, Bacterial / Q000302:isolation & purification
chemical_list: D011135:Polysaccharides, Bacterial