| Literature DB >> 5452130 |
J B Brown, J H Evans, N A Beischer, D G Campbell, D W Fortune.
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Year: 1970 PMID: 5452130 DOI: 10.1111/j.1471-0528.1970.tb03594.x
Source DB: PubMed Journal: J Obstet Gynaecol Br Commonw ISSN: 0022-3204