| Literature DB >> 1692234 |
H S Cuckle1, N J Wald, J W Densem, P Royston, G J Knight, J E Haddow, G E Palomaki.
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Year: 1990 PMID: 1692234 DOI: 10.1111/j.1471-0528.1990.tb01794.x
Source DB: PubMed Journal: Br J Obstet Gynaecol ISSN: 0306-5456