| Literature DB >> 4097392 |
E M Symonds, S L Skinner, M A Stanley, J A Kirkland, R C Ellis.
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Year: 1970 PMID: 4097392 DOI: 10.1111/j.1471-0528.1970.tb03420.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204