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The proportion of differential metabolites in serum and AF samples from CON and GDM. (a) The proportion of differential metabolites in serum or AF samples. (b) The proportion of differential metabolites in AF samples. CON-serum: serum samples in CON group; GDM-serum: serum samples in GDM group; CON-AF: AF samples in CON group; GDM-AF: AF samples in GDM group; AF: amniotic fluid.
