title: N-acetylneuraminic acid in electrophoretic fractions of serum proteins in the course of pregnancy.
mesh_terms: D001798:Blood Proteins / Q000032:analysis*; D005260:Female; D006801:Humans; D011247:Pregnancy; D012794:Sialic Acids / Q000097:blood*
chemical_list: D001798:Blood Proteins; D012794:Sialic Acids