title: Mass spectrometry of glycoproteins: O-glycosyl derivatives of L-serine and L-threonine.
mesh_terms: D000606:Amino Sugars / Q000032:analysis*; D004952:Esters / Q000032:analysis; D006023:Glycoproteins / Q000032:analysis*; D013058:Mass Spectrometry; D012694:Serine / Q000032:analysis*; D013057:Spectrum Analysis; D013237:Stereoisomerism; D013912:Threonine / Q000032:analysis*
chemical_list: D000606:Amino Sugars; D004952:Esters; D006023:Glycoproteins; D013912:Threonine; D012694:Serine