PubMed:870010 / 314-486 JSONTXT

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{"project":"performance-test","denotations":[{"id":"PD-UBERON-AE-B_T2","span":{"begin":46,"end":55},"obj":"http://purl.obolibrary.org/obo/UBERON_0001987"}],"text":"PS beta G levels correlate significantly with placental and fetal weight and fall below the normal range in about 60 per cent of all patients with fetal growth retardation."}